My cat LOVES this!
I got this fountain because my cat has always liked dripping water. A previous fountain had a slow trickle down a ramp, and he enjoyed the source of fresh water from that, but the running water dropping down just really makes his day! The motor is quiet, and the water resevoir is large, both musts from my perspective. If the fountain is making noise, you can quiet it by making sure the resevoir is well-seated on the base.