I recieved my Water Pic WP 100 as a Christmas gift to replace an older model. The new one has some improvements which I like, for example the power adjustiment knob on the base. All in all I am very pleased with it and I use it nearly every day.
Dental checkup revealed some gum issues and Waterpik was recommended. Very pleased with results. Even after brushing, Waterpik still cleans out remaining residuals. Especially since I have several crowns. Amazing!