Anybody ever use the "Flowbee"?

The Flowbee is a hair cutting vacuum thing-a-majig that makes it easy to cut your own hair at 1 uniform length, which appeals to me. 

I know punk singer and peacock enthusiast Mike "Virus" Rothstein has started using it, but haven't heard any testimonials from him. Has anyone else used it, or has had a friend use it, and care to share their experience? 

Since its pretty much a vacuum with blades I cant help but imagine it going all Final Destination on my scalp, or just yank the hair out of my head!