I got levelled 5 BM hunters to 60 under RAF. I had a blast.

Then I swapped one of them for a (pre-existing) level 60 druid, and levelled them all the way to 80. Questing was great fun, instances were challenging but very doable (didn't try an heroic yet, though), the occasional PVP was excellent.

I'm playing with 4 gorillas.