I have the SU-16 CA version and I am completely pleased with it. I've run about 700 rounds of various ammo through it without a hiccup. Its no tack driver but you can easily expect minute-of-snuff-can accuracy out of it, complete reliability and a readily available supply of mags and ammo. Plus a price point of around $500. Whats not to like. Great zombie gun and can get you a whitetail too if you're so inclined.