My buddy has one and I must say its a pretty nice piece, I've considered buying one from time to time haven't yet but still possible.
Only complaint I've heard from a jpsd are the steel mags they tend to rust and " stick" if they get wet and even from condensation and perspiration so you might want take that in mind.
Another thing I noticed is that the finish is not nitrolon or similar it almost seems painted.
But overall its nice and I've seen them go for really good prices at the shows