Very, very cool, probably somewhat specialized in use. I would definitely use it.
Seems that it may be very high quality, but my opinion is that pricing is about double what market would bear. Kick down the quality (mostly because that high degree of precision quality isn't usually needed) and get the price down to a point that more people would purchase it.
Oh wait. That's what China is for.
Wait 6 months-1 year and get similar for $29.