When I take my carbine to the range, it seems to be the one firearm most people want to try out, and overwhelmingly the first thing most people say is, "I can't believe how light it is!" Recoil is light to non-existant and it's very easy to stay on target even during rapid fire. It's not by any means a precision target rifle, but nor is it intended to be. Mine will easily stay in a pie-plate sized target at 100 meters all day long, which for a PDW, is more than adequate.
He said there were two kinds of soldiers, ones who liked cleaning their weapons and those that hated it. He fell into the later category.
Get you some 110 grain JHP .30 cal for your carbine, it is a fine round for defense and inflicting heavy damage.