I needed to replace my old Waterpik which was very old and the motor was dying. I saw this one online at Kohl's and I liked the idea that it was portable and did not take up a lot of room on my bathroom counter. It does the job very well and I am pleased with it.
It took a couple of days to get used to the feel and speed of the water getting inserted in my mouth. Now I am really comfortable and like how well it works. The chamber holds sufficient water to rinse between all my teeth well. However, if I want to irrigate a certain area extra well, I just refill quickly and continue. Very satisfied!
Since I purchased this, my dental checkups are Great. It's amazing to see how much food still comes from your teeth while using it, even after I've flossed. I give it 110%.