Well so much for Stannis turning into that likeable character I was talking about earlier this season. Seems he went to the dark side last night. The screams were powerful and scarey, that was a really emotional scene and while it did not happen (or not yet) in the books, many people had speculated it would happen, but I was still surprised they went with it.
As for the Unsullied, it didn't seem like there was many there at all and I can only assume there weren't because the opening of the pits was supposed to be a peaceful event to stop the attacks. While many book readers believe Hizdar could have been leading the Sons of the Harpy... he died in the TV being stabbed while he is still alive in the books, so I am guessing he actually may be innocent?
That scene with Meryn Trant in the brother and "younger" was pretty messed up. The girl I was watching with and I both thought that was worse than the Sansa rape.
Really good episode overall, but not as good as Hardhome and the previous episode 9s.