"Let's Kill Hitler" was a great title for the episode. Lots of interesting ideas thrown in there, a plot that feels like it's leading more in the direction of answers, and some holes filled in for us.
Not perfect, but an awful lot of fun, some nice moments of humour, and Rory got to do something awesome that would be a spoiler if I told you.
More like this please.
(It's possible that I'm enjoying the second part of the season more now I'm not expecting there to be actual individual episode stories.)
Original post on Dreamwidth - there are comments there.