I've said this elsewhere, but what's been a problem with me for WW is that it feels... Clunky. Not as smooth as I'd like it to be, with fewer responses than I'd expect out of a martial-arts-fantasy spec. In contrast I made a DH to try it out and Havoc feels exactly how I wish WW felt. Down to being able to slow fall (a la Crouching Tiger, Hidden Dragon), health orbs being consumable within a short range instead of running through them, how smooth transitioning between abilities and pursuing enemies, etc.
Not super experienced with the class, so I can't really comment at much more than an amateur level, but my damage feels alright for my gear level so far. It's the stuff around the damage that makes WW feel less complete, plus how weird ToD and ToK feel in PvP