I actually rather liked this, flaws notwithstanding and despite the fact that I usually dislike box-ticking stories and continuity and in-joke laden stories. I think everyone over the age of eight has known all along that the Doctor won't die, but it was interesting watching everything come together, even knowing what would happen (as soon as the Teselecta appeared again I realized it would take the Doctor's place and I feel a little stupid for not twigging as far back as Let's Kill Hitler but somehow I don't mind).

I am hoping that the loose ends you mention from The Impossible Astronaut/Day of the Moon will be explained next year, just as the references to the Silence in Moffat's first season were left hanging for a while.