Has anyone ever seen or used a Jooltool http://www.jooltool.com

I first saw it in the Rio Grande catalogue and what I like about it is that it says the piece stays cool. The problem with using a polishing motor is that if you have a lot of pieces to polish, your fingers suffer, even with finger protectors. Anything that makes life easier has to be good, particularly as Christmas seems to have started already!

I'm a bit worried it may be gimmicky but I think there's probably only one way to find out. I've read lots of reviews which mostly seem positive.