Got quite good reviews, apart from the battery door coming open mid games doesn't seem to have many problems. I'm waiting for a few more people to test them before I get one, they look awesome though.
been having a few problems with mine not feeding. the stack is full but the marker is not getting feed. almost like the balls are getting stuck in the feedneck. not sure if i just need a stronger magnet setup on the clutch.
Also some people may find it is a bit 'rearwards' especially if you like to play with your nose glued to the end of your marker. it does hang back quite a way with the forward feedneck.
rebuilding can also be a pain with the new removable deck plate, trying to get it to locate into the tabs while putting the second side is a bit tricky.