I'm no DPS by a long shot, even less of a Bastion player, but I'll be damned if this isn't the most adorable skin with the most attention to detail in the game, I think. The sound design as he moves, the footfalls, and most important, those kick-ass flames that spit out of the gun! (The bullets are equally cute).
Cheers, Blizzard. This is a damn fine skin, and I'll be looking forward to playing Bastion in MH. :)