I have one in a 30-06. Very accurate, but picky on ammo type (hated Hornady anything!!!) kicked as hard as my buddies 7mm mag weatherby, but definately not over the top. With a light gun comes a harder punch, of course you can carry that light gun all day! Butter smooth action and very reliable feeding. As for the poly mags, they are actually extremely durable. They are a poly blend, not plastic, and because they aren't a staggered feed, they will feed more reliably, especially those short mags.
Conclusion, buy different types of ammo and find out what it likes (as per most rifles), take that thing out and you will love it!