The TV show's version of the Hound is so watered down and placid that his scenes just don't have much of an impact compared to the books, I have to say.
The final scene notwithstanding, this was Sansa's best episode since the first season (this season having excised the main thread of her being somewhat active, though I can understand why). Sophie Turner did great, though the fact that she continues to grow like a beanstalk is making her scenes with the adults unintentionally amusing (and with the Hound gone, she's now taller than all of her scene partners).
The Battle of the Blackwater was rendered about as well as it conceivably could be for TV.
Bronn continues to be a highlight of the series.
I think the episode shows a lot of the advantages of focusing on only one location for the whole episode, even if they do usually make the cross-cutting work.