Indeed, I do. The hardness is somewhere between sapphire and diamond and the edge will hold a long time. You can not expect to get hair popping sharpness out of a ceramic, but I have cut everything from glass to my Henkel kitchen knives with mine.
Granted, you woun't be in a position to have to cut up a beer bottle or steel knife on a daily basis, but imagine the durability of this material for everyday use. Mad Dog has been perfecting this technology for some time now and he's really onto something.
Hilton has done a fairly comprehensive review on this. If you'd like to add to that, I'll be happy to ship you my Operator for T&E.