Good but None Too Large
Buy a larger size than you think you'll need. I bought the Jumbo for a two-dog (one small, one large) household and wished that it came in a larger size. It required refilling every day or so. Other than that no real complaints. Reading the mostly positive reviews here leads me to believe that this product can have a long life. I haven't owned it long enough to form an opinion. The first unit I purchased experienced pump failure within a week and was exchanged for another, which did not fail. Maybe the pump is the potential weak point....

There doesn't appear to be another, better product on the market, so go with the Petmate!

Petmate Fresh Flow Water Bowl for the kittys
Reading some of these reviews I find there are quite a few people out there that don't know you have to take the little motor apart and clean the cat/kitty hair out of it to keep this unit working like a top and it's not that hard to do either. I have had my unit for about 3 years and my kitty's just love it. About once a month or every six or so weeks I unplug the unit and totally clean it out and the most important part is cleaning the cat hair out of the motor.. This really is a great product. Thanks Petmate

Doggies Love it
To my dogs, this is as much fun as drinking from the garden hose or drain spouts!

The unit REALLY should be cleaned everyday, the pump comes apart to clean out the doggie spit and muck that accumulates. A pad last less than a week and a 3 pack isn't cheap. You can run it without a pad in place.

The Cats Just LOVE It!
Figured it was time to replace my previous pet fountain which is now several years old. Never had a problem with it, just seemed like it was time to get a new one. With a Gold Box Price of only $21.99, this is a SUPER Buy! Just change the filters regularly and clean out the motor area...it works like a charm!

Keeps the cat from drinking out of the pool!
My cat will not drink out of a bowl, period. This has been a god-send for us. Yes, it does gurgle if the water level runs low, but goes quiet as soon as it's replenished. I don't even bother with the reservoir, other than when I first clean and refill it. We just pour fresh water into the well. Cleaning it can be a pain, but I throw all of the parts, other than the motor, into the dishwasher. We've had ours for a few years now and haven't had any problems with the pump. We have one, short haired cat, so hair hasn't been an issue for us. For us, it's has been worth every penny and more, now that we have a reliable, safe source of water that the cat will use.