Ice hot! This story is full of tonal whiplash and can't seem to decide if it's trying to be a comedy or a serious commentary on social conditions in tower blocks, but that's part of its charm. The side cast is delightful; the Kangs, the Rezzies, Pex, all wonderfully bizarre and eccentric (though perhaps "eccentric" is doing some heavy lifting in the case of the cannibal grannies). The only ones who don't quite cut the mustard are the caretakers; the Doctor managed to trick them with something a child could've seen through. On the whole, a highly enjoyable romp with the evergreen message that we have more in common with our neighbors than we think, and that community-building is the best way to oppose totalitarianism.