Play what you enjoy. If you intend to play only DPS, and care for META specs, I would suggest going for a class that offers more options. Other than that WW is extremely fun to play,
its a FACT the monk is the most fun class in the game.
but taking away Serenity was a huge mistake in my opinion. i wish they bring it back as soon as possible.
honestly, without serenity, monk feels much worse. as a monk main since mop, its just not the same class. so right now, its hard to give advices about monk. i have to see how it is by playing it through TWW, without serenity.
but i do wish everyone played monk, so many are afraid to try it, not realizing how great it truly is.