A pretty solid brewery but if I were you I would hit up several of the other breweries while you are in Asheville.
I am sure you can probably buy a growler or some bottles. I've been there but wasn't interested buying beer so I never looked into it.
i pretty sure WW only bottles sours. Make sure you check out their funkatorium! Also, for a HUGE contrast (but still great beer) you need to hit Burial. Wedge is also in that same area, never been there but they tell me it's nice.