(Written after live view at Chicago TARDIS. Yes, it's barely articulate, but only because I'm still impressed).
Firsr, nothing like watching Who live with fellow fans.
Loved the intro, the puzzle aspect. and the TARDIS-as-metaphor-for-the-Doctor's-Mind.
Didn't like the way a certain sequence was shot (not a deal breaker, but felt off)
Oh, and that ending.
Loved it, can't wait until next week.