Bought this bad girl today, since HoW will erase it from the vendors inventory. It's amazing. Love the perks, only bad one is Perfect Balance (only because it's stability is great already) and fills both PvP and PvE rolls nicely. I recommend giving it a shot, if anything try to master Headseeker like I am. It's interesting to shoot a body then head for maximum damage, switches up your accuracy. That is all.
Got one on my warlock as a nightfall reward. Feeding frenzy, perfect ball, and glass half full. Just decided to level it up and give it a shot in the crucible tomorrow.