Well let's see, The sunbreaker hammer, unlike the GG, has actual drop off, which means if you want to get long range kills you'll have to aim it like a grenade which makes it powerful in skilled hands and weak in unskilled hands. The health boost isn't as large as people think it is, most people complain about the health but in reality they got too close and got a hammer to the face before they could do enough damage, like with blade dancers, they might seem OP when they kill you so fast, but in reality all you need is to get some space between you and the super and you'll win.