the coolest PvE additions that I didn't experiment with too much...
(and a wallpaper for you that didn't participate)
I did take 5 NPCs and slug my way through Gates. Made LA first try.
I liked the blood mage and everyone was using their abilities more,
but they still aren't all that bright. (they'll happily stand in the poison
water / acid until they die.)
Still, to see your NPC ranger fire up an ignited arrow or the monk
casting breezes, it took me by surprise though I was expecting it.
Did you test drive them? At 3rd / 6th / 10th? What did you think?