Damn! Luci's seduction of Nick into accepting him was sinster.

The blood oozing out of the crib of his dead child, the lilting voice of his wife.
People misunderstand me. But then she asked the question--why didn't God do something while a crazy man slipped into your house and murdered your wife and child? Why doesn't God do something? Haven't we all asked that at one time or another? Perfect seduction.
The last scene with Dean and Sam--awesome. You let me down in ways I can't describe, Sam. Dean was soft spoken, clear, and he let him have it. Sam isn't the baby anymore and Dean doesn't have the strength in him to make him feel better.
Dean
being Michael's sword....nice. And yet he refused. Dean still takes responsibility for his own actions. He thinks for himself.
That's the point. That's why God likes him. Dean has lost so much in life, but he refused while Nick succumbed to Lucifer's manipulation. Dean lost his family. Nick lost his family. Nick said "yes" while Dean said "no."
Castiel was cool. Zachariah was a total douche. God put them on the plane, obviously. Meg was HOT.

Oddly enough, the only part of the episode that didn't really work for me was Bobby's possession. It seemed.....rushed? Having Bobby working to regain use of his legs creates a tense dynamic between him and the boys. For storyline purposes, I understand the reason. The demons wouldn't have been there had it not been for Sam, but something about it seemed off. Peronally, I think Bobby did mean what he said, if only a little bit.
A great start. A somber start. Mark Pellegrino is going to be
outstanding.