Some of the humor seemed a bit off in this one but it had its moments. I liked the Doctor's quiet talk with the prisoner, something sometimes missing with all the running about, the slower pace made it a bit different. Then again, maybe it wasn't just lack of sleep that made me doze off on first late viewing.
I wonder what lies ahead for Rory because I'm so used to shows that drag out the romantic tension that it's suspicious to establish so early that he and Amy seem to stay together (not just this episode but the previous). I suppose we'll see as the crack thing comes into play.