Karen Gillan is starting to grow on me as Amy Pond and her walk through the Forest of Angels is incredibly tense, although it's a shame she has to come over all Susan and trip over, especially as she's...well let us move on. Oh and bonus points for the countdown to the Moff. That was nicely done and rather spooky.
Matt Smith is excellent. There's some lovely moments but the best for me are the 'Trap' speech as outlined above, the 'Hold On' moment and best of all Octavian's death (which is to some degree the Doctor's fault for faffing around too much.)
In fact my favourite thing in this whole story is Iain Glen's Octavian. No one ever seems to bring his performance up when talking about guest appearances but he's brilliant and his death scene is one of the most moving and brilliantly played in all Doctor Who history. I'm a big fan of Iain Glen's and have been since I saw him in a rather fantastic little series called 'Frankie's House' back in the early 1990s. He's been on my list of possible Doctor's for a while too. So it was nice to see him do such a fantastic job throughout.
So my early complaints aside I should reiterate how much I did enjoy this. It looked fantastic, had a real tension about it from the moment we first see the Angel on video to the end...and I liked the fact that the Angels sealed their own fate.
It also keeps the arc ticking along nicely as we see the crack from Amy's wall appearing and doing some rather unpleasant things to soldiers and Angels alike.
A much needed improvement on Victory of the Daleks and perhaps the sign of good things to come.
Ah, one final not so sure about it moment. The end of the episode with Amy trying to get off with the Doctor. I'm not sure if that doesn't quite cross a line that Doctor Who shouldn't cross. I'm not entirely sure but it felt a bit awkwardly tacked on to me. But we shall see.
Good stuff. More of this please.