This was easy to set up and works great.  I have had many cat fountains and I like this one because the water seems to last longer before it needs a refill. It holds a lot of water.  It is very quiet, almost silent.  The water bubbles and the cats seem to like the moving water.  You can see the water levels through the clear windows in the front.  The fountain is great. The app is kind of basic and I don't find myself using it.  Overall I like this fountain very much.