Good... could be better
580153
I used this book and passed the test.  However, I think I would have choosen the all in one if I would have to do it all over again (God, I hope that day never comes!)  But the authors provide a pretty much complete summary for what is on the test.  But I would not have done that great on the test if I did not take the review course.
1920715
user interface could use some improvements. for example to ring all phones for intercom, it takes like 4 menu clicks. same with PTT, have to use the menus to select an individual phone (which can't be renamed), or menus to select all phones. the camera image is washed out and hard to see. the speaker on the doorbell is weak and often the door bell pusher can't hear us.  The doorbell image can't be monitored if on battery mode unless someone pushes the button. plus points because the doorbell camera module can be interfaced into the existing push button door bell to ring the legacy door bell. This is useful when the door bell camera module has run out of batteries as you can still ring the legacy door bell. works adequately as a phone with reasonable range covering a 2300 sqft condo. good value for the low price. ended up adding a IP camera at the front door +  always on tablet running imperi home to monitor the front door.
3422109
The Vyper arrived within the estimated delivery date. The Vyper is great and all, but I wish it had 2 things to make it better.
1) Have a lower vibration setting. The 3 that are already in place are good, but perhaps it needs 5 vibration speed settings.
2) Allow the unit to be charged via micro USB or USB-C.
124817
Product itself is no doubt good but the accessories ! well it could be way lot better. It's swivel was too hard to move and at one point I thought I would break it if I use little bit more force. They can at least give a  cover cap for the temperature socket behind the fish finder beside power socket, in case we ( most of us ) do not use it and it is totally exposed to rain and elements if you do not cover it by some tape or some sort of cap.

Secondly the transducer needs more finishing. On mine, the glue was kind of scratchy and was missing in some parts along the groove. They could have done better job. I do not know how long the transducer would stay dried and water proof. I just keep my finger crossed on that. Hope I do not have to return it soon......
3771480
A good product overall. Easy to install. The music sync doesn't work as well as I wanted, the sensor has to be put on or near the speaker. Also my red led only works sometimes on the one led strip.
4879365
Not that  great of a story line. Sound and picture needs improvement. The picture seems slightly cloudy. It's just a tad soft. Could be intentional. But who knows. Nice extras, and commentaries...One major gripe is the obvious places where commercials would go. I don't see why the two episodes are not edited better to get rid of these "breaks". Also the picture quality is different throughout.. Decent surround. But not totally engulfing...If you have the box set then stick with it. Otherwise this more than suffices.
3911360
I have little to add to what the other positive reviews have supplied -- it's like my PCM-D50 only smaller and therefore useful for situations where the admittedly already small PCM-D50 is a little big. It is solid and good in every respect, except . . .

. . . the little door over the mini-SD card slot is the flimsiest part I've ever encountered on a  device. It is flimsier than the packaging of most items. So one should get a good, fast, high-capacity mini-SD card, insert it, then tape the damned thing closed or something. (What's more, it's a little rattly, which is not good for a machine that records sounds.)

. . . there's something not exactly right about the menu controls. Half the time when one is navigating the menu, one hits the "enter" button, which is next to the "down" button. Would be better if the buttons were more cleverly assigned. Slightly frustrating though no big deal if one has leisure to devote to setting it up at home. But if in the field one tries to make an adjustment on the fly and hits the wrong button under some stress, things could go downhill fast. Would make more sense to have the top row made up of the Rew. FF, and Rec buttons, with Play, Stop, and Pause on the second row. This would be more intuitive in working the machine and in navigating the menus.

That having been said, it is of course a magnificent machine and of professional quality but for the memory card door, which really is unbelievably flimsy.
3977126
is not as good as I expected. There should be more of a pictorial view to go with some of the steps to take. I think some of the chapters could be aligned more conveniently.
4655056
Pros:
1) Good sound Quality - It's stereo, and isn't tinny.
2) Good range - I can wander about my house....but not too far...
3) Relatively good battery life. - A couple hours of use...4 to 5 hours.
4) Ease of use - Plug it in, and go. No drivers. This is also a drawback, though!

Cons:
1) Ease of Use - No drivers! Therefore, it doesn't have as much control as it could have...the volume controls adjust your currently selected sound card...what?
2) Tight fit - As noted above, it's a dual-speaker setup, and likely to hurt your ears if you have a big head or glasses.
3) Recharger is proprietary....not mini USB...why???
4) No model for single-ear.

All in all, this headset works as advertised, just understand the limitations. Personally, I would have bought something that was single ear, and didn't squeeze my head like vise grips.
3179425
Not bad but could be better. Been using this cooling pad for some time now and I can tell you the fan has gotten louder since it was brand new. Keeps my Asus ROG 15.6" and my Alienware 14 both cool with just the single fan in the cooling fan. One recommendation I would advise for anyone looking to buy this is to get an external power source. The cooling pad does require a USB slot from your laptop but does have one built in so it's a win win situation other than the fact when you go to plug something directly into that sort, the fan speed will bog down. For what is out there on the market, if your willing to spend some more money, you could have a better outcome.
61596
Good but could be better.  I only say this because I laid this between pages to apply wadi tape on an edge so it would not stick to the bottom page.  When I pulled it off the plastic black lettering transferred from the plastic to the tape ruining it.  Next time I'll use wax paper.
2760306
So far, so good.  The speakers could have been made of better quality.  They play fine except when I play an album., then they sound like the sound could use more bass.  however there is no way to adjust them.  I have used it every day since I received it which was about 3 weeks ago.  It appears that nobody proof read the instruction manual.  I will say however that it was easy to put together, and fits quite nicely on our shelving unit.
990363
This product gets the job done, but it has it's issues.  I've tried apple, android, and windows devices.  None of them are very stable.  I have to reconnect constantly.  The features are good and the product is easy to use.  I just wish it were more stable.
1847393
Well, not quite as good as hoped.  Got mine around 2 weeks ago.  It doesn't hold a charge for more than 15 minutes and continually shuts down if running only on the battery.  This means I have to keep it plugged in while I'm driving but even with that, it will turn off a few times before it stays on continually.  But not charging and repetitively turning on is a big deal.  Instructions were ok...  but just ok.  No frills.
Quality of picture is very good.  Sound is not so good.  This morning the suction cup quit working and the least bump sent it down into the floorboards.  I'm sure I can get something from a hobby shop or hardware store and replace the suction cup.
If you want a dashcam just to try one out and see what they can do, then the price is right on this one and it has some features that look cool.  I've not been able to use them due to the charging issue.  Overall I've enjoyed it but have gotten tired of having to "mother it" all the time.
605000
Upgraded from a 2360LMT.  The features are great, but the unit is not perfect.  I am finding that the maps are rather slow to render (and sometimes don't render at all until I reset the GPS) when navigating.  Also, when you miss a turn, it ha sheen taking the unit about 20 seconds to figure that out to suggest a new route. I believe these issues are due to a slow processor in the GPS that cannot keep up with all of the new features.  The 3490 has also frozen up twice so far.  Both times I was driving into the sun, so I suspect the unit is overheating.  It was VERY hot to the touch on the back right side.  But the positives are huge, which in my opinion have outweighed the negatives by far.

Things I like about the 3490LMT:
> Terrain is available as a layer in the 3D view.  The terrain can tend to bluer the roads a little, but I still like to use it.
> Birds-eye view of some interchanges.
> Names of nearby stores is an optional map layer. This is really neat but appears to delimited to companies that have paid Garmin a promo fee?
> "Exit finder" displays what shops are available at upcoming exits. It shows them as a text list.
> Voice command works great.  Misses very few store names, interacts very smoothly, and lets me keep by hands on the wheel.  A+ here.
> Still has a trip log that uses a blue trail.  The blue trail needs a software update, however.  It will put a straight line between Houston and Los Angeles if you turn your GPS off at IAH and kick it back in at LAX.
> Sharp, clear screen.

Some nitpick items:
> Rendering and loss of map altogether while navigating. Complete loss of map has only happened twice when the unit got hot.
> Much slower than my 2360LMT to "recalculate" a new route when I make a wrong turn. Once, I had to pull off the road so it could catch up with me with a new suggested route.
> Color choices make some roads hard to see.  Needs more contrast.

The best Garmin GPS to date.  The next version with a new processor will probably be great.
4264796
A bit flimsy for the job it needs to do. Larger tires would also be helpful, as would a switch to solid tires. Not bad, but could be better,
2879527
It works good, but it doesn't sound as loud as I expected, so, it could use some improvement on that side.