I have one, they are a great gun if you spend a bit of money on them. Every bit as good as a TM for less than the price of a stock TM.
I reccommend the following. This is what I installed in mine and it's great.
-Metal Body.
-Real Wood Kit.
-Deepfire Hop Up Rubber.
-Element Bearing Spring Guide.
-Element 6mm Bearing Bushings.
-Element Silent Piston Head.
-Element Silent Cylinder head.
-King arms Hop Up chamer.
-Systema 6.04mm Tightbore Barrel.
-Systema Air Seal Nozzle.
heres a link to my thread for pictures and whatnot.
http://www.airsoftcanada.com/showthread.php?t=54260