When Unbowed, Unbent, Unbroken aired on HBO, fans of the show and the book series hated it for being more brutal and disturbing in comparison to the previous episodes. What's worse it that it received a 58% rating on Rottentomatoes. Ouch. However, I think that this is a pretty good episode. But before I can give it some praise, there are some problems I have with it.
In the previous episodes, the dialog was mostly good despite how slow the plot progression has gotten, but it's sad to say that the dialog here is really weak. It came across as too violent and disturbing particularly the ending sequence where Ramsay Bolton rapes Sansa Stark which came across as really unnecessary (which was the only reason why it received such controversy) and made me felt sorry for her. The second and third problems are the script and plot progression. The script does have some fine moments, but it lacks the spark that made the previous episodes (not to mention the previous seasons) so great. Also, the story did little to advance the story-arcs for the Lannister and Stark characters.
However, despite those flaws, everything else turned out OK. The performances, despite how weak the dialog was, are still good, the scenery, sets and costumes are still gorgeous, the music score from Ramin Djawadi is still fabulous and suited the atmospheric tone in some of the scenes really well, the directing is really good, and the editing is even more sharper this time around.
So, overall, Unbowed, Unbent, Unbroken is by far the weakest episode of the entire season, but in spite of it's problems, it's still pretty good. :)