Review (4/5): Works great
I had one & it worked great, but it broke after about 2 weeks. I contacted the seller and had to pay a few bucks to get a new one (was about 5-6 bucks S&H, they only covered part of the cost). The new one worked great and over a year later, still does. I sometimes use it twice a day. I got braces and this gets out anything you want it to and the pressure is insane given that it's controlled by your faucet and goes down to a tiny spray. You'll want to start off on very low pressure till your gums get used to it, but now, I keep that baby on full blast to clean my chompers. Only reason it doesn't get a 5 cause the first one did break. If not for that, perfect 5.
Oh, and my dentist complimented me on my gums. First time I've ever heard that!