I think it does it's job pretty well and his low weight makes it perfect to couple the AA-12 nicely. I often use the double-barreled shotgun to kill the groups of trash zeds and then pull out my AA-12 whenever a SC or FP comes up (or a lonely zed) .
Still, I think I prefered the KF1 version of the weapon... it was heavier , but way more powerful. I think that's the purpose of a hunting shotgun. In fact , I feel that the KF1 HS could be used during a whole match ,the only problem being the low ammo count . Otherwise it was perfect .
So yeah , I'm in for a buff (but I would prefer a buff of the M4 shotgun first)