I went into this thinking, "should I even bother watching?" I like Jody and I sort of liked Donna, but none of the girls really do anything to hold my interest, as I've made quite clear many times before. But, Sam and Dean were in this one, and I did want to see how they were going to get out of Jurassic Park Universe (which ended up not being quite that, but still...).
It ended up being not quite as bad as I was expecting. Maybe that's because I went into it with rock bottom expectations. It definitely wasn't as bad as that other episode that served as a backdoor pilot, that awful (IMO) Bloodlines from season 9.
However, it still didn't feel much like an episode of SPN, and again, part of that is because it's a backdoor pilot type episode. They tried to give it the same spirit, theme, whatever you want to call it, and I did see some parallels drawn, like a lot of Dean in Claire (attitude in particular), although I wondered if they were trying to add a parallel to Sam when they addressed her leaving. And then I saw the Dean parallel when she told Kaia she'd protect her, almost like we'd hear Dean say to Sam early on. And then it turns out that Kaia is the monster (or resembles it at least) in the end? What exactly was that thing anyway? It looked like some kind of ninja/wood nymph hybrid.
I think they tried, and again it wasn't as bad as I was expecting, but I don't think this is something I'd watch if it does get picked up. If Jared and Jensen ended up guest starring at some point, I may check out the individual episode(s), but I don't see this as something that would hold my interest on its own.