I was excited to try this out with my dog.  It was very easy to put assemble.  My little old man drinks a lot of water due to one of his medications and this keeps his water fresh.  I wasn't sure if he would take to it because it was something different and in a new spot due to it needing to be plugged in.  I took his regular water bowl away and a couple of hours later he was at the fountain like it had always been there.  I love that he has a fresh drink of water whenever he wants.