I bought my first one 2 months ago, I was very impressed with the workmanship & engineering/design. I have purchased 2 more since then, one for my mountain house and one as a gift. Oh yea it is amazing how it cleans your teeth & gums.
I finally bought this water pik as a gift to myself, and I'm so glad I did. My oral health seems to be happier, even though I've only had it for two weeks.