THis is my second Waterpik flosser and love it. My first one I used practically every day. When it stopped working after a very long time, I immediately replaced it with the WP-100. I've had dental issues due to lack of flossing when the tech suggested getting a Waterpik. I'm so glad I did - I get good reviews from the tech when I go in for my check-ups and will never be without my Waterpik flosser.
Buying the waterpik was one of the best decisions that I have ever made. I floss all the time, but still unable to get all food particles out from between my teeth. My dentist recommended the waterpik and after using it I can see real results.