I bought my first Water Pik (the Ultra plug-in variety) three years ago and I am thrilled with it. I got this one about a year ago so that I could take it on trips. I am not as pleased with it. It does a good job of flossing but I get tired of having to charge it all the time. If you don't mind that, then you will probably love this because it takes up very little room in your home or in your suitcase.