I can tell you a bit:
~has a pretty good RPM from what I here.
~accurac is pretty good
~the metal under-folding stock has some faults:
1. It isn't very strong
2. I hear its very wobbely, moves around and its hard to get acurate shots sometimes....
3. Is not too comfy in your shoulder
4. Can get in the way.
~When I held it for the first time, my thoughts were: "Man, this thing is a rock." the gun itself (excluding the stock) seemed VERY sturdy. Very heavy too. (generally a good thing)
~Velocity is decent. not amazing, but decent.
~it's very authentic, real as can be.
Thats about all I can tell you. If I think of anything else, Ill post.