My dentist suggested a WaterPik. I had one years ago and was pleased to see how improved the product is. It is a little noisy but that's okay. I add a little mouthwash to the water reservoir and my teeth and mouth feel so clean and fresh.
This is my second water flosser. I like how it works to keep my gums clean and refreshed. Specifically, it is easy to clean under my dental bridge. The only drawbacks are that the flexible hose seems to be somewhat fragile and may need repair and the constant exposure to water allows for mold build up that needs monitoring and frequent cleaning.
I bought this over a month ago and love it! The only thing I wish is that is was a bit more forceful for when the water is coming out but otherwise, as usual, Waterpik is a great product. It also comes with more attachments which is a great idea. I use the pocket tip on a daily basis so I will be ordering more of these to use with my new Waterpik.
I bought the WP-100 at the recommendation of my dental hygentist. My father had one of the original water pics. I was amazed at how well it cleaned my teeth.