Good keyboard, but terrible instruction and customer service
927286
The size and weight of the keyboard just like the real piano, I like it.  If you are computer wiz, know how to configure audio file and look for better price on full size keyboard, then this is the one for you, otherwise, do not buy it, because the keyboard doesn't play sound, you must use your computer to output each key's sound, and there are no any detailed instructions in the start menu how to configure the audio sound and export sound files, and online technical support also lack of step by step instructions, to reach a live customer support is impossible.  I finally got an email back after more than a month, but it didn't tell me any instruction, just told me log on their website check out frequent questions/answers.  I ended up returned the product.
2750251
I had no problem with the "pairing" and the keyboard itself works great.
However the Folio is another story.
First, it's hard to get at the volume controls.
Also, that leather "flap" at the front of the keyboard, where exactly is that supposed to go?
Under the iPad, or outside of the iPad?
On the outside, it covers up the bottom row of icons.
But inside, it makes it a bit bulky when you go to close the case.
I don't think the instructions were explicit enough.
First instruction is "Insert iPad into iPad pocket".
However there is no illustration, and it took me a while to realize the opening was underneath.
I was trying to place the iPad between the 4 corners.
I think the instructions could have been a bit more helpful.
But I do like the way the keyboard works and as of this moment I'm not sure whether I'll be keeping it or not.
I have other Belkin products which I'm VERY pleased with.
4517623
Took three times ordering to get one keyboard to work. My computer guru repair man and I both believe this keyboard has a software issue with Microsoft (what a surprise - Not!) and when contacting Microsoft they stated it would cost a fortune for them to assist me.  Logitech is basically non existent with service for they never responded to my inquiries about their product.  Sad because when this keyboard functions, it is Fabulous!!  Illumination is wonderful for anyone with vision issues!
1679940
No instructions. Can't find any on the web either. But it was easy to figure out.

There is a switch and a button on the rear edge of the keyboard. Flip the switch to turn it on, and press the button to send out a blootooth signal for your phone/tablet/laptop to catch.

The keyboard is smaller than I expected, and it seems to work fine, yet I have no idea what some of the extra function keys do because there are no instructions and there doesn't seem to be a downloadable manual that I can find.
2947089
I really like this keyboard, but the program interface is a bit lacking. Additionally it appears that most information online is for an older version of the software which looks like it offered more options?
2245248
I bought this keyboard because I liked the option of changing the back lighting color.  I've had this keyboard for about two weeks and other than the normal minor annoyance of learning a new keyboard (I mashed a lot of wrong keys getting used to it), I had no trouble and really liked it.  The user manual is short and has some hilarious translations.

Today the left arrow key stopped working when the up arrow is pressed.  They both work fine separately, but not together.  This is a major annoyance when gaming.  I'm going to have to get something different.
1775188
1) Not as described 2) broke after two and a half weeks 3) no customer service

I ordered this keyboard as my laptop keyboard broke. The product description said 10 inches, which is great because it meant that the keyboard could sit over my 11 inch laptop keyboard. Except when it arrived it was actually 15 inches wide.

After two and a half weeks, the top row of keys--numbers, parentheses, asterisk, exclamation point, dollar sign--all that good stuff was now inaccessible except by google search.

I email CHINFAI straight away, and receive an email asking me to wait two business days. 6 business days later an no response, I email again. A full 9 business days after my initial email I arrive at the library to do some work and so many keys have stopped working that I cannot log in to my laptop.

I call Amazon customer service and all they can offer is a refund for a product that was mis-sold, faulty, and lost (and continues to lose me a lot of time). The customer service representative offers me to connect me to their line as they are based in China and it will cost a lot for me to call from the US. Of course they do not pick up. I don't know what to do.

Bottom line: DO NOT BUY
2602093
Good keyboard if you only want something that looks cool with back-lit keys, but definitely not ideal for any kind of prolonged typing. The keys seem to stick if not pushed at just the right angle which, personally, caused my fingers to become quite sore even after 2 weeks of use to try and "break it in". Ended up switching back to my old keyboard and will unfortunately be trying to find a different product for my needs.

EDIT:
I was contacted by ChallengerUSA and they sent out a replacement that feels much better and the keys aren't nearly as hard to press. The original had rough plastic and the replacement is completely smooth. If you receive a keyboard with rough plastic and has keys that are difficult to press then you likely received a defective unit and should ask for a replacement.

The only thing I can say now is that the layout of the keys does take a little getting used to (mainly the Enter key), but other than that it is a great keyboard! Customer service was great from Challenger, there was a slight mixup in processing my replacement, but they resolved the issue quickly and I received the replacement within days.
683557
having trouble with key board. Ipad found keyboard but key board won't type anything and blue flashing light won't stop
815536
I've had two of these keyboards.  I love the feel and the best thing is my wrists don't hurt at the end of the day.  My biggest complaint is that the letters and numbers wear off, even though I can type without them.  I called MS and they told me to put stickers on the keys.  That was the multi-billion dollar companies resolution instead of just replacing the $40 keyboard under warranty.  This keyboard actually does have a 3 year MS warranty but I had to pull up the warranty information off the MS website and "prove" to the customer service person that it was still under warranty.  Then they transferred me to someone else and when I told them the problem with the keys they said that the keys weren't covered in the warranty (some warranty that they didn't know about earlier).  I should have said it stopped working.  The response from MS really makes me want to give it one star, but I really do love the keyboard other than that.
1331211
The keyboard I got has a Function key where every keyboard for 20 years or so has a Command (Mac) or Flag (PC) key.  This  incompatibility makes the keyboard difficult or useless to anyone who types automatically.  It's OK for someone just learning to type, provided they are willing to learn a touch system they cannot use elsewhere; and for watch-your-fingers folks who will never learn to type, but that's about all.  The color is nice; why did they have to bugger the key layout in exchange?
3888110
This keyboard is quite good, Though this is my first mechanical keyboard. I do find that the keys are colored in such a way that the backlighting is essential to see whats on the keyboard even in a well lit room. I have emailed the company to ask questions and have not gotten any notice back. So if you want quality customer service chose a separate company that doesn't outsource.
888017
Received keyboard in acceptable amount of time, synced as well. Lack of instructions on how to sync Bluetooth keyboard to tablet (Galaxy Tab Plus in this case) made it slightly difficult to accomplish task but luckily I was able to puzzle it out...

Sadly I cannot be useful and provide accurate instructions on how to sync it up but its similar to all others, hold power button for X duration of time to open up sync mode and "Drop" prior connections, scan for devices with current device that you are using.

Keys are kind of sticky (in terms of when you press one it may or may not register) so you have to type with PURPOSE, no touch typing here! Tried to use in class to take notes and broke down and used my Swiftkey application instead because of the aggravation involved with learning something new when I needed it. After revisiting it at a later not so pressed time I found it served it's purpose, a physical keyboard. Incredibly small though I daresay I can fit it in my hand(I have big basketball hands keep in mind).
3528147
Nice pliable keyboard, great design and feel, slightly smaller than I anticipated. Terrible directions, does not work w Windows PC, cannot get it to pair with iPhone. Pretty much useless. Sorry. If directions were translated better, perhaps I could get it to function. Don't have the time to keep trying. Should be plug and play like most Bluetooth devices.
4254229
Just bought the keyboard, did not work correctly. Their customer service was terrible, ended up just returning for full refund through amazon. Will not buy Corsair products again after this experience.
1298573
Do not buy any Matias keyboards, ever. Their engineering staff are categorically incompetent. I have had THREE Ergo Pros now. One was the very first gen a few years ago, and more recently I had the Ergo Pro Low Force model that I ordered last year, and most recently (as of yesterday) the very latest revision of this keyboard that was supposed to solve all the problems. It appears they fixed the wonky firmware issues with the capslock key getting into a weird state, but the keyswitches themselves are still awful. Very often a key will get "stuck" even though it isn't physically stuck. For example, earlier today I was typing a message to a friend that had the letter J somewhere in it, and when I hit J with a positive, firm force, the keyboard sent "jjjjjj". I can't stress enough how the key feels physically correct yet it is still "stuck." I have talked with the engineers at Matias and they explained this problem to me, and told me it would be fixed with the new keyboard they sent me. It was not fixed. There is also the opposite problem where, despite slamming a key firmly, no letter will appear. It happened once just while typing this review. I also talked to their lead engineer about this and he also told me it was a switch issue that would be fixed. You know, I was understanding of this a little bit, since I figured hey, they're making a new kind of quiet switch from scratch, maybe it takes a revision to make it work. I personally think the last revision was SO BAD it should have never shipped, but I'd've been happy if the new one fixed it. It doesn't.

I've had firmware issues that don't exist in anything from cheap $10 keyboards all the way to amateur open source keyboards like the Ergo Dox. Not one had the problems I had with this.

Oh and let me tell you what their "electrical engineer" told me about my first keyboard. There was an issue where EM interference woul/d get on the wire and cause errant keypresses o appear out of nowhere due to inadequate shielding on the wire. He told me it was because "engineering has tradeoffs." Um, no, I have other split keyboards with a cable that have no problems. It is utterly trivial to fix and shouldn't happen even without shielding because error correction could be usejd on the data sent over the wire. Also take a look at how messed up the words are here in my post. Where di that / come from? Where's the T on my "to"? I didn't type that J in "usejd!" How about the other D in "did"? Gone into the void, I guess!

Do not buy under any circumstances. You can literally see the defects here in my post, which I took great care to carefully type. Please keep in mind this is THE LATEST revision as of 5/31/17. This is a hot off the line "revised" edition that is not supposed to have these problems. Nothing has changed.

I really liked the ergonomics of this keyboard but after three models, three different revisions over the course of two years, I am just done. This is absurd. If this were a $20 keyboard I'd just shrug it off as being cheap, but this is a premium model. There's just no excuses.
2390700
The Azio keyboard looks great! The colors came across even once turned on, and the large letters are great for people who may have vision problems. I bought this for an elderly co-worker who likes big letters. The feel of the keys was like a regular keyboard. The aesthetics of the keyboard is great, and the price for is reasonable.

And for that reason...I gave Azio two stars instead of one.

I was excited to get this keyboard for my co-worker. I knew she would love the larger letters. I plugged it into my computer to test it out before installing it on her compute and...NOTHING! There was no feedback. I read the instruction sheet and determined I met all the system requirements. I then checked all my cables, ensured the keyboard was plugged in properly by unplugging it and plugging it back in. Still nothing. I then proceeded to reboot my computer...twice. Still nothing.

I ended up calling Azio's help number. They assured me I took the right steps and determined it was an internal hardware error.

So back it went. Thanks, but no thanks.