Filler episode in my opinion...well, maybe not a "filler" episode, but one of those that is really just lead in to other future episodes. So not much happening here.
Benjen back was sort of surprising, though I never bought in that he was gone. As soon as there was a dark rider saving Bran I knew that's who it was. That could be fun to see develop. I'm not convinced that Arya is gone from the Many Faced Gods just yet. Waif is going to get destroyed by her, that's for certain, and maybe that's actually the final test or something. I don't know, but I don't see all this build up just disappearing like that. Plus, I think Jaqen really likes what she has to offer, he's just not showing it.
Daenery's gonna whip some ass though. That's fo' sho'.