I just got back and started up a 4 shaman 1 pally team. I've been breezing through all the dungeons and quests. I am currently level 51 on my toons and I work 50 hours a week :P
Leveling is super easy and its only taken me about 2 weeks so far. about 1.5 days /played. although most of that is standing in starter zone trying to get macros working again since the last time i boxed was... 2 years ago :P