I bought this about a month ago, and have used it daily (at least) since. It's powerful and surprising how much food comes out even after flossing. Really like it -- and my teeth feel great!
I bought this mainly for my grandson after he received a bad report from his last dental cleaning. He had gotten braces about 5 months ago, and had not been cleaning his teeth around the braces very good. This helps him to get the plaque off.