Too quirky to make up for the good value in hardware.
344906
The specs in the formfactor are really good, but when it has so many bad quirks its not. It randomly shuts itself off which is a known issue yet to be fixed with firmware (not just a windows update thing) and only has 2-3 hrs of battery on single charge.
2714978
This "computer" is not worth what they're asking for, it's about $60 for these parts if that.
3675089
Im not sure its worth the money I think I could have found the same feature set and performance for about 100 or 150 less.
140024
Nice form factor. The tradeoffs in the product design limit its usefulness:

* It's nearly useless on devices with USB 2.0 interfaces
* Its driver can't co-exist with the DisplayLink drivers used by Pluggable and others

Given the price and the design limitations, I'd spend the extra bucks for another device if I had it to do over again :)
3345094
Good:
- good value (seemingly) bang for the buck
- a dreamy 2 TB disks space
- nice design, looks aesthetically pleasant

Bad:
- transfer rate is sad, on my 100Mb ethernet this drive max 11Mb/s which equates to 1.4 MB/s yuck!
- Mionet software is unpolished and buggy, limited to 30 days following a monthly sub fee
- difficult to setup on the network,only for the tech savvy
- documentation is lacking, try google but I failed to find any help
- cooling fan is terribly loud
- status light is very bright (because it's too big) and overwhelming in dark rooms
- No USB/Firewire/eSATA for connecting directly to your PC

Very disappointed with WD and this product.  Perhaps World Edition III will be an improvement. Avoid this product!
180364
The hardware itself is great. But the supporting software is pretty cumbersome to work with in some aspects and more importantly fails continually making it impossible to make my own custom settings.

Just buy another similar mouse who's software isn't bug-prone.
4127717
First of all, the sale price for this is $199 and not a dollar more, something to keep in mind when ordering one. There's also a volume discount if you are getting ten or more.

Now, the device, "free cheeze in a mousetrap", as they say. There are several problems here - first, you need a suitable motherboard. Supermicro owners are OK, of course, but this us unlikely to work with most ordinary mainboards due to the BAR requirements (but some, such as Asus X79 WS) claim to work. So you need to check the motherboard first, because this is not a consumer-grade device.

Next, the cooling. These cards come with active and passive cooling and guess what - this one is passive. This means you basically have to have enough air circulating inside your case to take out the hot air. The Phi burns ~300W, so apart from an obvious PSU requirement (luckily, an ordinary connector here, nothing fancy), you also have to make some noise to take the heat out. Obviously this means potential expenses and more noise.

Next up, use cases. This is NOT suitable for bitcoin mining and as tests show (Google them!) it's not as good as Tesla-grade hardware for number crunching, which means if you have large data-parallel tasks you should still stick to CUDA for the time being. While this card has a 512-bit vector (kind of like AVX but not exactly), I'd argue its strength is that it's free from branch divergence problems of GPUs. So in practical terms, if your sensors collect 2Gb at end-of-day and  you want to analyze them, just use CUDA, whereas if you have 50 sensors and each one streams a diverse set of data to the device, well yeah, you can use Phi because it's essentially a separate machine.

Finally, development. This device is ALMOST x86 but not quite. You need the pricey Intel C++ Compiler (~$1500) to work with it and NO, there is no Java or .NET support (yet). But what you DO get is support for many multithreading models including pthreads, OpenMP and even MPI. Though setting up MPI is a real pain as this is essentially a Linux device with all the pain that comes with that.

To sum up, this is an excellent toy for a geek and a great way to expand a single computer's power for specific tasks that are either capable to leverage a large vector size OR its massive parallelism for handling something else in addition to the other things that your machine is likely to be handling already. And yes, there is the Offload mode which lets you write programs that use the device as an additional coprocessor instead of treating it as a separate machine, but this gets you (unfortunately) into the realm of Vendor-specific, nonstandard code and I'd just stay away from that given that MPI is decades old, has proven itself and requires about a day or two to learn.

So, this is a very specific geek device with relatively large cost of ownership, lots of compatibility issues (you'll want Linux for this), it does not in any way beat CUDA for data-parallel, but is very neat for independent (branch-divergent) multithreading. If you are a Comp Sci major and want to play with a device where 8Gb of memory are shared amoungst almost 60 CPUs, go ahead. If you are an integrator, you might consider bundling this for some seriously parallel (as in, independent workloads/tasks) processing. But for everyone else, NO, it won't make your programs run faster.
3781701
Though the display rack is attractive, it is extremely overpriced.  In addition, I can't fathom why the holes wouldn't be pre-drilled.
3020173
I was  not expeting too much at this price point but I had hoped for something better than Wal-Mart style stuff.  The edges are poorly finished and the hardware is not robust.
One for quality and one off for value
3621913
To be brief, I thought the reviews were good enough to get it, and I wanted to save $100+ vs a Synology or other box (which has very good reviews).  How hard and costly can it be to put one of these together?

The problem is that the wimpy processor on the unit serves up its webpages very slowly, making the UI painful, which in turn hampers configuration settings changes.

Additionally, sometimes if I initiate multiple file copies to it, it bugs out and Windows loses track of it, making me start them all again.

Pros:
Transfer speed faster than some/many others (23MB/s)
Upgradeable
Decent community for addons
Low power draw
Low noise

Cons:
Reliability spotty
Very bad power cable (disconnects at a breath of wind on it)
Support lasts only 90 days
Wimpy processor

I haven't had a failure yet to make sure that it would recover my data properly, but I'm nervous enough that I think I will back this up to yet another disk, just in case, rather than lose my stuff when eventually one of the drives dies.
4088358
the hardware is great., and thats it.
installation , software and userfriendly?  are totally NOT ! for some
reason hard to make it run on windows xp. If i found a perfect software i will pay for it $$$ i just put in on the closet. can't make it work .. and i am computer geek.
4657231
The concept of 20 inches Tap screen is very innovative from Sony and I am sure, it will be adopted by many other manufacturers. However, whenever I work on this PC, why am I getting the feeling of being on a Television screen with internet access facility. Not sure, whether this is mere mindset or the features of the PC itself.

Pros :

**  The screen size and clarity is very attractive for sure, especially with the huge screen at high resolution
**  Wireless keyboard is very sleek, slim and very easy to move around and handle
**  The wireless mouse is good, but made of cheaper plastic. So, it cannot be called sturdy
**  The overall speed is satisfactory, but cannot be called as efficient as a 8GB RAM. Good point is, the machine doesnt
  shutdown when I run HD graphics or videos, as it is done while working on HP laptops.
**  More than any other model, the Windows 8 is best suited for PCs of this size and model.
**  Webcam is moderate in clarity.
**  The family paint option is a big plus and the kids love that.

Cons  :

**  I am very curious to know, who designed the PC as a whole. The speakers are at the rear of the PC. The sound is
  intolerable and is jarring. Most time, I need to put the speakers on mute. So pathetic design to have the speakers in the
  rear. This is a big minus for this PC
**  No HDMI port to connect to a Television or any other devices. This may not be mandatory for me, considering the fact that
  this PC has a bigger screen to run videos and movies.
**  Very strange and weird that, Sony doesn't provide any software for playing DVDs and BDs. Usually, all the laptops and PCs
  come with atleast one basic software, such as Cyberlink or Nero to support movies. When I contacted Sony Support, I am
  told that since this PC was shipped without a optical drive, the company don't provide drivers too. Very pathetic justification.
**  Overpriced at about $1200. Considering the negative features of this PC, the price is way too high and is not worth it.

I am owning the PC since 10 days but not very much impressed. I wouldnt be surprised, if I decide to return the product in the next few days.
3654957
The hardware is of a poor quality. Do what I did and get one from PerFit ZULU4 (not a paid endorsement, just my experience).
3963991
Way too expensive, but overall good screen to use to make a pseudo switch with.
3547084
Got this on Black Friday discount. Still not worth it. This is closed-source, which is fine, but the environment is not very good. To go beyond the default functionality, you can only program on a webpage that does not work well, and requires a paid subscription.

The hardware is excellent, and the manufacturer has nothing to fear from opening up their platform. Computer science students everywhere make software at least as good in their intro to robotics classes. The hardware is an awesome little bot though, and easily worth the money once it can be programmed. This little thing could be so much fun.
1279660
The hardware is "okay" (say 3 of 5) in that it works and its hard to argue with the price.
The software, by contrast, is a disaster. Weak interface, slow to use, annoying, and ill suited to current (2017) operating systems.

Mostly I was frustrated by the fact that my unit did not come in a box and had no documentation/instructions. I'm keeping the product, but cannot even come close to a 'recommendation'.
4201196
Pros: Good hardware specifications, decent audio (Although Beats-Audio is way over-rated), & back-lit keyboard looks good. Using Windows 7 Pro 64, 8 GB RAM & I7-4710HQ

Cons: Noisy hard drive, gets very hot on upper-left quadrant (seems dangerously hot), plastic shell is as cheap as Chinese-plastic can get.  Lags on while surfing (i.e sometimes very fast & others like a dial-up modem [using Firefox]), DVD drive has substantial lag-time in opening DVD tray & when you close it; sounds like the spring is very cheap (i.e. you hear the "twing").  I bought directly from HP and am already thinking of returning it; I have very early February to decide.  HDD runs at 5400, not 7200.  No contrast setting/control available and Display has a "blueish hue" and you must position the display at about 110 degree as opposed to a 90 degree.

Honestly, I am amazed at the cheap outer materials (i.e. compared to Lenovo (which is cheap & Dell) given the high quality Intel hardware with Hitachi Hard drive.  After reading my own review; I would say this is a real disappointment and cannot recommend to anyone.  Already returned a Dell purchased during Christmas, an I3 2-n1 for $559, almost regret returning it to Sams Club, but then again it had Windows 8.1, the new VISTA.  Seems like most everything is cheap Chinese crap.  If it works well (i.e. Windows XP pro), then get rid of it
_______________
Edited Update:  Returned HP Envy; I give credit to HP for the smooth return process & timely refund.  As an example of just how slow this machine was-->  I have a Dell VOSTRO Desktop (8years old) with Pentium 4 and 4 GB RAM running Windows 7 Home Premium and when I did the Malwarebytes "threat scan", about 320K files, on each computer...the Envy and the Dell Desktop running Pentium (8 years old); the Dell took 3min 30 seconds to complete the Malwarebyte scan, while the HP ENVY took 29:54 minutes; both scanned approximately 320K files.  I either got a lemon or HP has an issue with configuration.  Just one example of many.