Hard to say how well this works alone
921784
I use this with Miracle's probiotic, and together they seem to work well. My dogs, especially one in particular, no longer struggle with diarrhea, and they both seem to enjoy eating again.
1174560
Works as well as some of the better products available
4020583
Works!  Not super fancy or big, but it works.
434336
Works great when needed , sometimes hard to find in stores
4167079
It works, and it seems to work well.  I haven't had it long enough to comment on longevity.
4654351
It works well once you get it to work but there is a little trick to getting the hang of this kind of opener.  It is a little on the heavy side so if someone has problems with their hands this might be a problem.  The other "con" is that the little gripper to get a hold of the lid to take it off also takes a knack to get onto it.  If you are visually impaired, like myself, that might be a little hard.
3462190
It works. It's a bit of pain you have to use it via the software you load onto your device,  but it's useful to have around just in case.
335510
Works as intended. Not much else to say about it.
3830789
When we bought this, I did not realize I needed a separate charger for it - so I finally finally got that and it seems to work fine.
I am not sure I really needed it and I did not want to buy something more to make it handy for us to use.
Overall, it does what it is supposed to.
2350870
its OK ... giving it a 4 star because I don't really use it a lot ... but it works
363540
Hard to give a rating to a small amount of electronics that is doing its job and now embedded in some other piece of equipment. It does what it says it does on the front.
2137899
Works really well, once you figure out how to use it. There's not a lot of documentation out there for this, so it does take a bit of fooling around to set it up correctly. I don't think it ever says it, but the settings are in CONTROL PANEL.
2779882
It does a very good job once someone explained it to me. It was not easy to figure out on my own.
4405016
Works like it is supposed to, makes a difficult job easy
1716320
I'm surprised that something so small would work so well
1804262
I don't write many reviews but this thing works and works well.  If you need one .. get this one
4475462
Tricky to connect for the novice, but works very well.