My 5 only just got level 63 but questing is a breeze. My damage seems to have increased a bit since the update, 1 starfall (5) kills any mob my level and a single starfall crit is taking equal level mobs to half HP.

I haven't had to drink once since 60, not sure if its the new mana on crit mechanics or just the fact that everything dies in 1 cast.

I have yet to PVP or instance though, I guess instances would be impossible without respeccing one to feral and one to restro.

With the new talent tree you can now skip natures grace if you aren't keen on having to mash buttons thanks to the procs.