Well I won this gun today at an airsoft raffle, and let me say I'm rather impressed. I've never owned a gbb before, and this one is pretty nice, although i do have some complaints. First this screw under the top of the slide was too small and the slide wouldn't stay on. Luckily i found a longer one and it works fine. Also it is almost all plastic i think, which is a shame, but it still feels nice. The mag is metal and also huge, it wont fit in any smaller sized pistol mag pouches. And the 8mm bb size is annoying i cant even use it for real yet.
-good sized gas capacity
-takes green gas which is good cause i use propane
-It's a FIve-Seven and no one has one of these. You're sure to stand out and wow people who only have glocks and colt .45's.
-Slide was loose because of screw (easily fixed if you can get a new screw)
-Huge mag (pro for gas capacity though)
-Manual is in Japanese so good luck