this is my second Water-Pik - wore the battery out of my first. My dental hygienist says she has little work to do when cleaning as I have almost nothing to clean off!
I bought one a year and a half ago and about three months ago the toothbrush stopped holding the charge. I contacted the company expecting to receive a new brush and they sent me a complete new unit at no charge. The water pik and toothbrush works wonders on my teeth and gums. Nothing cleans better!