I've never liked shot guns in any game. Just not my play style. They are ok if your doing bounties and solo, killing reg mobs or what not. But I can kill all them without even getting close. The biggest reason, though, and I think speak for a few people, is most of us are running strikes or doing the raids. Its a big no no running up to any boss class mob in this game with a shotty. Just about all of them have an aoe that messes you up if you get close. So yeah, they are pointless.