I got half-way to 71 last night in a couple hours. There was a massive server queue, though.
That should die down in a couple days, though.
I like the new zones. Lots of detail and the quests so far have been pretty entertaining. Yeah, they're a lot more of the same, but I found that there doesn't seem to be as much running around. Kill 10 boars, but the boars are right here and not 15 minutes away.