Since the husband wants to level together on our usual mains (his mage and my pally), I've taken my worgen hunter out for a spin this time out and he's already 110.
So far, I like Legion -- though if they job Jaina out and continue with crappy writing to make her a one dimensional strawman (or worse, a strawman raid boss or killed by Thrall/Khadgar after we do all the work), heads are going to roll at Blizzard HQ.
I'm annoyed at their insistence in trying to sneak PVP in every zone. Bad enough the Underbelly in Dalaran caters to the jackasses, but trying to explore and suddenly getting flagged with no warning is NOT fun,