The Waterpik WP-100 works as advertised - Easy to use and flexible in maneuvering. I use maximum pulse for back teeth and minimum for front, to reduce excessive splashing. While I use warm water, it initially spurts very cold due to water left in the system. So I let it run for 15 sec or so before each use.
I bought this to replace my other one that only lasted a few months and I had not saved the receipt.I have saved the receipt this time. Works well when it works.
Kudos to my dental hygienist for recommending this to me. I've had nothing but great results and the Waterpik has made a tremendous difference in my oral health. I think it should be a part of everyone's dental health.