Just assume this is all spoiler tagged.
Kind of annoyed they apparently went to the trouble of getting a bunch of old dalek models and only used them as blink-and-you'll-miss-it background elements. Especially where they just went and used time war daleks in the ward that was supposedly full of the guys from classic episodes. You know, where using those old models would have made perfect sense.
But really nothing compared to how much the rest of it annoyed me, from what seemed like it should have been a big deal breakup having such a trite and soap opera-y wrapup, to the fucking idiocy of locking a bunch of crazy assholes inside a prison where the lock can only be worked from the inside (and it even has a working teleport in there, just in case the entire premise wasn't already fuckoff stupid.)
I did, however, like the creepy dance scene. Especially where the ballerina recalled the music box dancer from Oswin's room and effectively, if kind of obviously foreshadowed the big twist at the end. Which I was enjoying right up until nobody said "come with me anyway." What, can't she run fast enough? Am I supposed to think the Doctor is a kind of stupid asshole here? Mission fucking accomplished.
Man, if it had gone that way it'd be the best thing ever. Not just trading out the usual hot chick peril monkey for a monstrous blob in a can, but the blob still thinks it's a hot chick, so hey, no need to sacrifice the apparently necessary eye candy. Might be a little too Julia Roberts in Hook in terms of the actress never actually getting to be on on the same set or directly interacting with rest of the cast, but that could be brilliant, too. "Surrounded by friends and still isolated" has an awful damn lot of narrative potential.
Nah, fuck it. She's a Dalek. Go die in an explosion.
Also, who the hell has been going around chaining these things up when it's demonstrated that it's about as effective as restraining someone with construction paper christmas tree decorations? It worked in Dalek because nobody actually knew better. Here it's just asinine.