Really, I use it just for fun on the smaller maps, because the animation is funny is heck with a super close range kill. But i know going in im not usually going to be able to get my stealth chopper in FFA. I can still win with it alot but its not overpowered because you will run into someone with an OP, LOL weapon with range.
In defense of primary shotgun users: I rarely ever go under a 2.0/30kills with any shottie save the M1216. I know that doesn't fit this forums 50-4 or bust attitude. But we don't all eat cinderblocks. Just... You know, a bunch of us.