At first, my cats didnt like it. After I unplugged it she started using it. Its so hard finding things that my picky cats like. I really like this cat water fountain. Its very easy to put together, use, and clean. Its has a led blue light so you can see how much water is in it. It holds 2.5L of water inside and 110ml on the water tray. It comes with 4 water fountain filters. The fountain also has a high, medium, and low water flow settings. This cat water fountain has everything and I recommend it for all animals.