My cat seems to enjoy her new gift even at 18 years old. It is fairly quiet and the cord is about 3 feet and may limit where you can set it up. The water seems to stay pretty fresh and never runs dry. I still clean the base once a week as it can become slimy. I am not convinced the filter adds benefit and sediment/food particles settle to the bottom of the dish. I doubt I will purchase more filters. The convenience of not having to tend to the water bowl frequently is wonderful. The reservoir tank drips as it is inserted into the base. A big minus since not user friendly for children. The flow adjuster lever is very flimsy so use a gentle hand. This is still new to my houselhold but am pleased to see a happy cat and hope it holds up over the years.