Great - After a Small Tweak
When I first used this, the tip would stop spinning as soon as it touched my tooth. I could not polish at all. It's not that the motor is too weak or that the parts are too flimsy, it's that the motor shaft was slipping as it turned inside the tip holder.<br /><br />I removed the holder and placed a tiny bit of the polishing paste inside it. I then pressed the holder back onto the motor shaft. This totally solved the problem. The motor has plenty of torque and does not stall. I was quite impressed at how easily stains were removed.<br /><br />I'd give the device five stars except that not everyone will figure out how to fix the slipping problem and would have an essentially nonfunctional item. Also, the head of the unit is way to big to allow polishing the back teeth unless one has a very big mouth (literally).
Rating: 4 stars