Got this so my kit cats could have consistently flowing and filtered water. It was super easy to set up. The flow of the water is adjustable on the pump. I got it set in about the middle. 
They were a little bit cautious at first but they have taken to it well. 
It make a light noise but its pretty quiet. 
This works well so we dont have to replace their water as much now since this keeps it filtering and running. 
We are happy with it.