Bad Juju once maxed is great for PoE - I use it all the time - you kill it fills the mag, never run out of ammo. I see loads of people using it in pvp but haven't tried it as I prefer invective (also available as an exotic bounty) shotgun and a maxed Hopscotch Pilgrim (pulse rifle). Pretty good in pve too - never runs out of ammo! So good all rounder, fires in full auto, reloads the mag after a kill.... only down is lowish impact. I'm sure you will enjoy it.