Jon Snow becoming LC felt rushed indeed. I felt like he was chosen because it was needed to advance the plot. Granted, I thought the same thing in the books, so the show nailed this one I guess. I liked Jon scene with Stannis much better though.
Great to see Jaqen back indeed, though I was a bit baffled with the fact he refused to let Arya in first, and then found her in the streets and brought her back. Why refusing her entrance in the first place, if he intended to let her enter anyway? And if not, what made him change his mind? It kind of felt like "we need to dramatically reveal Jaqen's comeback, and we can't do that in the very first Arya scene, so let's stretch this out a bit" decision.
Also, what happened to Arya's list? I seem to recall Melisandre was here for certain. And wasn't Tywin in the list too? I doubt Arya knows he's already dead at this point.
Anyway, that's just me nitpicking. I liked this episode better than the first one. Also I only have some vague ideas where Sansa storyline is going, because nothing of that sort was in the books, but I bet she's going to regret sticking with LF instead of Brienne. Because sticking with LF is always bad news. Not that she knows it, but still.