I bought my Waterpik WP100 about a month ago and I'm certainly glad I did! It has very good features and does a great job of flossing. I have several bridges and it keeps them clean along with reaching items between the teeth.
I LOVE my waterpik! I brush, floss then use the waterpik and I am amazed at how much gunk is still there. It is a major part of my nightly routine. Great investment for a clean mouth.