I was very anxious to see the first ending in the Moffat led show (with Matt Smith and Karen Gillian). My main gripe with RTD's series enders where that they always tended to be quite cheap.
If you haven't seen it yet I'll only say that it was one of my favorite pieces of 1 hour television ever. After the opening when one of the main characters say "Right, this is where it gets a bit complicated." follows 50 minutes of brilliance.
And while those 50 minutes are quite complicated (certainly more complicated than what eg Inception managed in 2.5 hours) it's not hard to keep up because the viewer is given small clues all the time. This is rather well explained by Moffat in the Confidential for that episode, where he points out that if the viewer understand what is going to happen right before it happens, they have no problem following along.
I also really like that Moffat is very fond of turning the ordinary and close to us into a monster. In "the empty child"/"the doctor dances" it's a small boy in a gas mask. In the "girl in the fireplace" it's a ticking clock in your room. In "silence in the library"/"forest of the dead" it's shadows. Blink has gothic statues and now we have the silence.
In a way the Daleks and Cybermen are like supervillans. They may be hellbent on destroying you, but you always know where they are because they put up a big show. The horrors that lurk in the corner of your eye, you're never really sure if they are gone...