This weeks episode was pretty laid back to the main story, it was more of a filler but lest to say it was still pretty decent.
It was nice to see Castiel back and fighting for a good cause, heroes don't need to wear capes, some wear trench coats. As for Sam, i wasn't particularly fond of him helping out a complete background character from seasons ago, like i said from my review a few episodes back that i don't like how the show is bringing back secondary characters as cameos unless they are giving them a new purpose. I mean, i don't mind the little help outs for old friends but i would rather them stay on topic especially with them being on the last stretch of episodes of a 15 season story.
I would also like to see more Sam, Dean and Cas together, these solo acts aren't as good for my liking.
Not disliking the episode, i still thought it was thrilling and somewhat sentimental 8.5/10
P.S.
People who rate low because of some narration shouldn't be allowed to rate, it has nothing to do with the episode which makes it insulting.