Sadly is one of the few exotics I haven't actually used to much. But what I have heard from others is it is not a bad pulse rifle to use in PVE because it has a perk which lets it be fired in full auto mode and also a cool as perk called String of Curses which allows the weapon to refill it's mag instantly after each kill, and also increases damage for a short time and decreases the cooldown of your Super by 7.5 seconds after each kill.. Pretty sure for PVP tho it's like ever other pulse rifle at the moment and just doesn't match up with the DPS as other primary weapons.