II was so excited about BLACKOUT and ALL CLEAR, because PASSAGES was the first Connie Willis book ever that didn't work for me - I finished it because it
was Connie Willis and she's one of my favorite writers ever, but I was too often confused by the scientific conversations, and I didn't like the ending. So it was nice to have something new from her, and in her time travel series too. I just finished ALL CLEAR today (I read BLACKOUT months ago). The break between books meant it took me a while to orient myself when I started ALL CLEAR.
These didn't have as many

moments for me as To Say Nothing of the Dog, and I got lost sometimes in the rambling (panicked) thoughts of Mike and Polly, but I still really enjoyed the books.
{spoilers below}
I can understand why Polly wouldn't have thought about Colin during those months since to her, as someone already mentioned, he was just 17. To me it seemed that the relationship she had with Sir Godfrey, which I absolutely
loved, sets the stage [ahem, sorry

] for the relationship with Colin, once she discovers that he has aged several years since she left.
Ironically (and unusually for me in a CW book) my favorite characters where the "supporting cast" and not the time travelers (except Colin). The Hodbins, the troupe of performers, Sir Godfrey, they had as much to do with why I kept reading as Mary/Polly, Mike/Ernest etc. Of the time travelers, Eileen/Merope was my favorite because of how she grew over the course of the books.
Did anyone else get this feeling, at the end, that Colin is some descendant of Eileen or Binnie? I've been trying to figure out what grown up Binnie/Eileen meant when she said to Colin at the war museum (page 610) "I wonder if she...." and "That would explain..."
He asks her about it on p. 614, and she gives him an explanation (pp. 614-615) that he doesn't believe, and we're sort of left to read between the lines, but I can't figure it out... Can anyone enlighten me?
All in all, I enjoyed both books. But I agree that both could have benefitted from heavier editing, to make it less confusing to follow. I felt like it took me longer to put things together (like Mary=Polly, and Mike=Ernest) than it should have.