Well, it was good, wasn't it? Just like everyone's been saying.
(If you don't know what I'm talking about,
try harder.)
He was good, she was good, even
Clive was great. In fact, I think my favourite line in the whole episode was one of his:
"It's true. Everything I've read, all the stories. It's all true."
...which then transpire to be his last words ever, before being brutally gunned down by an Auton at the very moment of his epiphany. Perfect.
And I liked the 45-minute format, too. One of the many things which helped to make it entirely up-to-date. After all, that's how long sci-fi episodes are these days: not 25 minutes. It felt like a brand new series: fresh, catchy and contemporary. Yet with a rich legacy upon which to draw. The theme music fell into the same category: that old, classic tune we all love, but with a new driving, rushing violin line to get the pulse racing.
The Doctor has always travelled in time. He's made it into the 21st century in very fine form, I think.