No way am I touching those spoilers, although I'm VERY tempted.
In my opinion that episode did a lot to redeem Andrea. I loved the scene when she let out the zombies on the Governor, and then to get yanked back when she was so close to the prison...
Tyreese is badass, glad he's part of the show.
I think it was pretty clear that Milton was the one who torched the zombies (which looked very cool by the way) and it's nice to see him taking some action.
They're really loving the songs at the end of the episode recently! Can't believe there's only two episodes left. It doesn't seem enough.