I absolutely loved this book! I just didn't want it to end. Wow, what a gift to read it. Great characters, excellent theme: Love transcends Time. You will find yourself thinking about the characters long after you've finished the book. I did want to re-read it right away again too, just so I could be with them longer and see the foreshadowing more clearly through the jumbled timeline. (You might need to really concentrate, especially at the beginning, until you get the 'flow' of the book). But it just grabs you from the very beginning. ( Also as a Chicagoan, the location/setting details were wonderful too to read/experience on the page.)
<<edited for potential plot spoiler content>>
I hope you will read it and enjoy it as much as I did.
p.s. Here's a link to the Today Show (too-brief) interview with the author, Audrey Niffenegger:
(scroll down about 1/2 way to watch the video) Today show interview