Yeah I don't know how sunder is for BD, but for BM it's shit. Does shit damage, the aoe version(base version is single target).
Basically with BM, you have to DPS in Draw stance because everything in neutral stance is shit damage, that's why you want to be tanking/have aggro as much as possible since it lets you use Cyclone which refills your focus instantly to full, letting you to constantly dump it in Draw stance then cyclone back to full and Draw stance some more. Unlike BD which seems to be limited to Lightning Draw and Storm Cleave to go in Draw stance, BMs can actually enter Draw Stance with Q and SS on top of Lightning Draw, which means you can enter Draw stance basically every 5-6seconds or whatever.
Now that's fine, but the problem is Draw stance for BM is all about RMB, Honed Slash. Unlike BD, Flash Step is on a long cooldown so it can only be used every now and then, and it has weird mechanics and can't be changed to a single target non moving skill(so you have to zip around and shit, it's annoying to use at times). But Honed Slash is purely single target. You can Flicker aoe, the base Flicker for BM is aoe and the good talents leave it as aoe as the single target ones are meh, but the damage on Flicker alone is bad. So you're in a situation where your only good damage stuff is single target, so you have to rely on cooldowns to aoe. It's annoying to do quests with the class as a result. You can demolish a single mob really quickly with a CC > Q into draw stance > RMB LMB RMB LMB kind of thing, but that pales in comparison to how most other classes can kill sutff.
Assassin is kinda like that too from what I've seen, but with higher damage. They just can't aoe for shit.
Just feels like crap when doing daillies or like poh24, when with other classes you can just run in, group up a large pack, and explode everything, then do it again next pack and so on.