Single Hatred Sin is fine, problem is when you start stacking 3 or 4 of them on a team. They have crappy burst, but insane sustained damage. 2 or more pose a challenge due to healers being overwhelmed and eventually they kill someone. Their sustained damage is almost double of what a PT or other burst class can deliver in a long game. They have amazing defensive cooldowns great self healing and multiple disengages. 3+ Hatreds sins vs any non healer comp is currently an auto loss due to them being able to rotate damage and apply crazy dot pressure.