I like that they brought Martin back. It's always interesting to see a familiar face, and I thought that it made for a more dramatic episode, given the way things turned out. I also noticed they made a point of mentioning he had been released only a month before, which I took to mean "See? Sam couldn't have called him for help during his year off," but that's neither here nor there.
I gotta say, I love Benny. I think he's turning out to be quite an interesting character on his own, regardless of his relationship with Dean. In a way, it's like they're finally exploring a little bit of what they could have done with Lenore back in the day.
Okay, Sam and Dean? Are assholes, both of them. I just can't decide who's worse. Sam refused to trust Dean to do the right thing, plus he ditched the hunt and left Martin alone, but Dean was ridiculously passive-aggressive when talking about Benny, and he pulled such a shitty move by sending Sam away the way he did. At the same time, I get where both of them were coming from. If only they would just talk to each other and make the effort to really listen to what the other one is saying. It totally makes me want to smack them in the back of the head for being idiots. But hey, I guess we need this conflict right now so they'll have something to resolve later on.
Either way, I suppose my favorite thing about this episode was how nothing was black or white and it was all about making difficult choices. And I don't mean only the tension Sam and Dean. Was Benny wrong to do what he did in the end? And Martin, should he have gone away, like Dean told him to? What about Amelia?
All in all, I thought it was a pretty solid episode. Is it January yet?