I am thinking about buying one of them vacuum cutting devices. In the past many people talked about this, and a lot were completely satisfied. I usually cut my own hair with nothing more than a buzzer/clipper. But it limits me a little bit because I usually have to cut all the hair to an inch long. The good thing is that the clippers miss some hair naturally, so I still get an uneven kind of finish. Anyone here use flowbee or robocut with success, or can even recommend which one they like better?