Thought it was a rather good episode. There were always going to be some deviations in character, but I don't think most of them have jarred too badly. Jojen and Meera are each a little different than my expectations- a lot older to start with, but I didn't mind too much. They've done the same with Missendei though, who in my impression was in her tweens in the books, and I think that's changed the complexion of her character a fair bit. No matter.
I'm generally a pretty strong critic of Tulisa, but I think the scene with Cat in this episode was fairly critical to Cat's development. That the scene involved Tulisa is I think, no more than incidental- it wouldn't have made sense with Robb or anyone else traveling with Robb. And people need to give Cat a little more love anyway. I liked it very much.
Jaime and Brienne was relatively entertaining. I don't see any problems with their scenes at all really- excepting of course the entire very colourful organisation written out, but that's another story. The actress is doing such a good job of conveying a dour she-giant though, that I'm a little concerned some of the sensitivities of her characters are being missed. She seems to be playing this character a tad too simply- she has loads of room for development from the books and I hope this isn't going to be another great opportunity missed.
Speaking of missed opportunities- I really hope they manage to keep Hoat in one way or another. The leprosy.. the being fed to a bear.. the lisp. Would be a damn shame to lose him.
Particularly because I think they're affording way more time than is necessary to Shae this season. Yes I understand that she's a foil to Tyrion and Sansa, but that scene this episode with her and Tyrion is making me a little worried that they'll make her go to Tywin because Tyrion somehow betrayed her with Sansa.. which would be totally missing the point.
Arya's scenes I thought was quite good. I don't even remember what Thoros of Myr was like in the books, but (or so) I quite enjoyed him in this episode. I hope he'll still be a red priest though. Would be disappointing and inconvenient in terms of plot if he isn't.
Finally, I'm not liking Sam in this. His actor is fine but they're showing only his weakness and almost none of his strengths.