Low impact... It is under whelming in PVP... In a one on one, Bad Juju is just overwhelmed by so many other rare, legendary, and exotics. In a two on one, your more likely to get an assist then the kill, and assists don't count towards the perk. Have seen it used well, but this is rare, and the one time I have seen someone dominate with it it was warlock who was using it and also had the exotic helmet that recharges supper when you kill with your supper. But to be fair, the guy was wrecking everyone, had 15 more kills then anyone else in the game and a KDR ratio of 4. He could have used a wet noodle and still owned. He was just that good. If you are that good, use it. If you want to use it, practice with it and maybe you will get to the point where you dominate with it. Chances are, you will decide to use a different pulse after a few frustrating days. Three Little Words is amazing mid range and has high impact for a pulse.