Worked great for the first few months
929915
I bought the orignal Rock n Roller at Sam's Club. Worked great for the first few months. Now when it's got a full charge (plugged in for a couple hours) the battery LED's quickly drain down to red where it stays for the next two hours or so of battery life. It used to stay charged for days, now I'm lucky if I get 3 hours. Tech support was useless. Even though they advertise a battery life of like, 72 hours - the tech support guy literally told me "Well, 3 or 4 hours is still pretty good". I'm going to tear in to mine and see what kind of battery it has and get a replacement - not through Monster though - tech support said they don't offer replacement parts.
1108277
worked great for first couple months, gets cloggy very easy, hard to clean out the suction piece, loses its suction over time
998395
Worked great for a few months, then had a memory leak. Probably just a bad batch.
4718395
Worked great for a few months and then didn't. I'd have to click it a few times to get it to engage, and eventually it stopped working completely. I'll probably attempt a repair at some point, but for now it's sitting in a box.
2851034
Worked like a charm the first few months we had it.  It was a joy to use, but then the suction force reduced significantly, and eventually the motor began to let out a really loud noise.  It got to the point where we would have to use ear plugs just to run the vacuum.  Rather then pay to ship to Hoover for repair, we purchased a Shark and couldn't be happier.  Buyer beware.
2527936
Worked great for a few months, now only one side will heat up. Bought it in Oct, 2017, it shows it is on but after a few minutes an Error comes on  on the controller. I would like to replace it, but don't see where to get in touch with the seller.
2740042
Worked great for a few months, then stopped working even after replacing the battery twice. Also has given my dog cut or burn marks on his neck, and has made him very skiddish around the house even when it's not even on. Would not recommend this collar.
1396041
Worked great for a few months. Then the responsiveness on both collars got very spotty until it quit working altogether.
1850272
Worked great with light use for a few months, then stopped working yesterday.
171687
It worked well for a few months , but then began to retrazarse in reading and writing. It affected the installed system.
4092550
Great for the first few months- then something about the mic deteriorates as people start complaining about the noise.
3766111
Worked fine within the first few months. Then I constantly received a disk read error, which requires me to restart my system.
4828216
Work great for a few months and now it doesn't connect.
2363482
This worked great the first few months.  Now it keeps resetting several times a day and loses it information and time.
3694789
Worked great for a few months, then the hot water would just not stop coming until the carafe was emptied and hot water all over the counter. Amazon sent a replacement even though it had been 3 months. As soon as we plugged it in the "low water" light would not turn off and the water would not run through the machine. I returned both broken coffee machines and am still waiting for word from amazon or a refund. :(
3921646
Use this for our short-term rental property.  It works great for the first few months, but since then we have had nothing but problems with it.  The app won't work at all, so we purchased the keypad. The keypad work for a month or two, but now the keypad doesn't work either. Every time we go to the house, which is only once a month, there is a new software download to update the lock,  but we have to be next to the lock for the update, and it works for us while we  are there, but it does not work for any of our renters.
2012989
Honestly worked great for the first few months. But then the screws holding the main base together began to come loose. So I tightened them back up, but then they came loose again. After doing some work, I realized that they were just stripped from small wobbling in normal use. Now I've never dropped this thing and always kept it safe in my bag during transit. The base is plastic with metal screws. So obviously they chewed through the threads.

Works fine, but an unfortunate design flaw. Now the camera powers off if the base shifts a bit. Terrible for the normal use of the camera. Now I have some corrupted shots that can never be opened because the camera shut down mid take/image capture.