My cat is in love with this pet fountain. This is the only water bowl she will drink from in our house.  I think she can taste the difference in the water since this fountain has fresh, filtered water. It has an adjustable control knob so you can customize the water flow. It’s pretty quiet. We keep it in our master bathroom attached to my bedroom, and I never hear it in my bedroom unless the water is low and needs more. It keeps itself pretty clean, but the top part is dishwasher safe if you need to wash it.