This fountain is slightly larger than I had anticipated, but it's great nonetheless. I knew this would be whisper quiet, but it doesn't even make a single noise! It took a little time to put this fountain together, but it was very easy to do with the instructions included. I like the fact that it helps prevent bacterial growth since my old water bowl used to grow mold after only two days. The only thing I dislike about it is that you have to replace the filters inside every so often which, to me, is not very cost effective in the long run.