The controls and the fill port are well placed. Water pressure is very adequate to displace particles from between the teeth. The reservoir gives enough time to do a good job on all teeth, upper and lower.
I bought this about a month ago and it still works great. Even after brushing my teeth, I can’t believe what the water flosser finds. Now I know my teeth are clean.
This water pick is so easy to use. I am very impressed. When my dentist stated that I needed to use a water like I was a bit apprehensive. This one is a breeze. I absolutely love it.