Well, that was...
...unexpected.
Tonight's episode really just fell flat for me. I'm sorry, but we were in a great place last week, and we were all on the edge of our seats (I certainly was), but tonight's follow-up just didn't have it.
Three biggest issues? The English lady (seriously, they wasted a ton of screen time on her that really should've gone to a Cas-Chuck scene, which was sorely missed). Billie, because her role was a blink-and-you-miss-it insertion that felt really forced and awkward to me.
And, I hate to say it, but problem number three was Cas.
He had absolutely no role in this episode whatsoever, and it felt like he was shoehorned in because they couldn't do a finale without him. It was a letdown when towards the end of the episode, Something Big happened, and literally his only contribution in the entire scene was, "Indeed."
Sorry folks, but he was wasted this time around.
As for the rest...some good scenes, especially at the sanitarium ("You finish up, I'll go piss them off"). But there was not one word spoken directly between Cas and Chuck/God. Sam should've offered to let God touch his soul at least once (I'm not joking, he was willing to let "Cas" do it to get Dean back, why not here to save God Himself?).
And as for the ending...everything just feels too neat and tidy. I can tell what they're setting us up for come season 12, and I don't like it.
About the only thing they absolutely nailed was the bit at the very end of the episode.