ive used one. and wasnt too impressed with it.
At an extra £200 or so over a shocker, I dont think they are worth it.
Its a nice gun for sure with plenty of nice little touches (i like the milling, feedneck, vision on straight away and the ease of stripping it down even when gassed up) but i wouldnt take one over my shocker.
Ive checked out the threads on pbnation for the problems people are no doubt gonna have, and it seems theres quite a few popping up.
Im pretty sure we'll see improvements being made to the marker to get rid of these little faults but for now, I would say stick with your current shooter