Accuracy at distance would be greatly improved, as would rate of fire. The gun is also very light and has very little kick (which also improves accuracy when you're sending out 15+ balls per second.

With high end guns like that you can reliably hit the shoe or hopper of a player across the field. It basically allows you to walk a stream of paint to the target.

With the low enders, it's basically spray -n- pray. I posted the pick for Beast because we were talking about the Karnivor last Sunday.