Well, that was a rush! I don't think there's anyone who can ramp things up, and up, and up, and actually deliver on the reveal, quite like Russell T Davies. Liked how contained it was, how everyone had a role to play, and oh, that reveal. Very much like Utopia, as someone noted, down to the text on a screen, and I don't mind that one bit, as I love Utopia, and am really happy to be that swept up by an episode again.
Only vaguely knew of Sutekh, just an inkling of him being a classic Who villain, and had to look him up to confirm, but still felt the impact of his arrival. Love his Anubis-variant design, love that it's the original actor voicing him (also the guy who voiced the Beast, clearly a master of deep, deep evil), love everything about it. Highly satisfying.