This was a great episode. Funny, perfectly paced, reinvented the Daleks, gave Smith even more choice time to show his stuff, and a WWII dogfight in space. It was also entirely unexpected, given the heavy emphasis on the Daleks' deception in the advertising.
I disagree the best two parter of the current run was Lost Earth and Journey's End both Dalek episodes. I saw the first Matt Smith episode. The crack in time is interesting as well as the new Tardis, the rest is just there. Loved the Dr.Who through the years montage.
I was counting on Andy and Erin's first date being a total disaster but that was a little creepy. Especially when the kiss was trying to take place and the dude was just watching. Erin has her own Mose.