Seriously- spoilers. Don't read ahead if you haven't seen it.
1. When did Angels stop having to not look at each other? And why?
2. Will the 12th Doctor have a bad wrist that acts up? Or will he/she just be generally kind of "undercooked"?
3. The (underused) real NYC locations looked great.
4. One observation from my girlfriend here: In a city of 7 million people (I checked the 1930s population stats, folks), the Statue of Liberty is probably the most constantly-observed statue in history. Getting off its pedestal on Ellis Island would be a challenge. To say nothing of how many people might pay extra attention if it's walking around Manhattan. Or is the answer that David Copperfield is in a secret alliance with the angels??? [link]
5. River was less annoying/smug than usual- almost back to her likeable SILENCE IN THE LIBRARY self (appropriately enough). I guess she grows on you in a timey-wimey way.
6. "I'll just come back!" You said it Rory. Best line of the episode. And he's right. After so many far worse situations, it's kind of hard to accept this is really the end for them, which makes it hard to get too upset (the breakneck pace of the episode didn't help).
7. Brian (and Amy's never-again-mentioned family) never get brought up, and I have a feeling never will again.
8. I guess the Ponds won't be waving to themselves in 2020. That was already established as an "unfixed point" though (whatever that means- it seems to fly in the face of how "fixed points" are explained in this story). So fair enough. I think.
9. And this is the big one... AFTERWORD
by Amy Williams
Dear Doctor, I know NYC is all time-fragmented, so Rory and I have taken a bus to Yonkers. We're at the bus depot at 59 Babcock Place (September 8th, 1959, 2:25 PM). Could you come pick us up, like, now? This place is kinda smelly. Ta! XO -Amy
P.S.- And don't freak out about the tombstone. I just bought that plot and commissioned a bogus headstone with our names on it- so no worries there. See ya soon!