Eh...there were things I liked and things I didn't like. Mostly I was just staring at Jenna the whole time, the rest of the episode was a bit of a blur to me. Some points about things I did notice:
-The main problem was that the characters spent a lot of time describing the themes when the writer (the Luther guy, right?) should have found ways to dramatise and visualise them instead. In several places he did exactly that and then still had the characters go on and on about it even though we can see it all with our own eyes. It made it slightly tedious.
-There were some obvious plot holes, as well. For instance, Clara gives up her important ring to by a space-moped so they can save the sacrifice girl. Why? Use the TARDIS.
-Interesting that the TARDIS doesn't like Clara. Wonder where they're going with that.
-I liked that the Doctor looked genuinely intimidated by having to fight Mogo. That was quite funny.
"The trouble with fighting for human freedom is that one spends most of one's time defending scoundrels. For it is against scoundrels that oppressive laws are first aimed, and oppression must be stopped at the beginning if it is to be stopped at all."
-H. L. Mencken