Everything. It looks cool, performs awesome, awesomely made parts.
I doubt this thing will break within the next 10 years. The best thing is that i whacked an autococker with it.
It loks graet and works awesome so buy it.
Stock barrel is fairly good (above average)
costomer service. thaty doesnt really matter though. and it didnt come with the x-barel. they said the x-barrel was defective or something so they didnt want to dissapoint us.
Great gun performs well and looks good. id say buy it.