Hammer is a very fast clear speed, actually. regardless of the build or not, the skill is very strong. the only thing that might be considered slow is the rate that the hammers spin outward, which doesn't matter because it relies on kiting so monsters will funnel themselves in behind you and walk through the hammers anyways.
I don't see how it can be claimed as atrocious is all I'm curious about. but the part about seeing the guide was true as well. is it being worked on