we have 2 drinkwell fountains. they used to get a decent amount of use but after we got rid of the dry food almost a year ago, i may have seen one cat use the fountain...once. i am hoping they are getting enough water in their diets since i am scooping up lots of pee balls in the litter box, but yes. huge waste of money in our house. i used to have a bowl of water just in case and i think they would drink out of the bowl of water more than the fountain.