Well, they sure did come up with the cure quickly. That's one thing I really like about this show, they move thing along. Though I was expecting that Klaus' blood would be needed to cure the wolf infection that Katherine gave Elena.
And there are more dopplegangers? That might be fun. Especially if Katherine finds a way to insert herself in the new Elena doppleganger! I could see her coming back from hell for that.
Good grief, Bonnie is an idiot. She really can't tell her new intern is an experienced witch? She thinks she's just that good of a teacher?
Caroline and Stefan are good together, very entertaining and fun.