Well, I should probably wait until part 2 before giving my overall verdict, but here are some initial thoughts:
RTD has assembled a great cast here, with actors like Claire Bloom, June Whitfield, Brian Cox and of course Timothy Dalton in virtual cameo roles. I'm expecting them to play a much bigger role in the second part. At least I hope so. John Simm is scarier than his last appearance on Who, playing an insane version of The Master. And how great to see Bernard Cribbins' name in the opening credits at last.
I can't believe the effort that went into setting up that
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"Master race"
So,
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the Time Lords have returned
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The Doctor deflowering the Virgin Queen
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The Master apparently eating people