I have 3 cats that are new to many things as beds and toys. At the beginning, they were scared of it but after checking it out, they loved it. I even put a normal bowl of water and they like the fountain water better. It is clean and cold water for them. How they wouldn't like it? Also, it was super easy to put together. I just read and followed the steps on the instruction booklet. It says all the info I need to know about the fountain. Plus, I can control the flow of the water and it is easy to clean. I love that dogs can use it too, since my friends have dogs and come to visit me.