Its an awsome rifle, love mine.
Shoots well, after a few hundred rounds of mini-mags it runs on almost anything ammo wise, easy to shoot and great for just plinking around. If you have a AR its a great practice rifle and if you dont its fun as hell.
I know that the very first generation did have some feeding issues but that was taken care of very quickly, the only issue you will have is trying to find ammo and mags.
"You're asking an awful lot of dumb-butt questions"