I bought this after reading negative reviews of Waterpik products. I had used the Waterpick for years and liked it but it finally broke. The company shipped the product quickly and everything was very good quality. The problem is it just doesn't work. It is more like holding a water hose to your mouth. The water stream is not fine and directed enough to really remove particles and plaque. The oscillation feature of the Waterpick cleans much more quickly and deeply. I sent it back after trying it and nearly drowning a few times. I rate the company highly as they were very helpful about returning it and getting my money back. Maybe they can improve the design so it really does what it is supposed to do.