A longer review will be required at some point, as it's difficult to sort out a simple characterization of the book.
Carrying forward the incredible story from the Three Body Problem, this may be the most thoughtful Sci-Fi on this list and is shaping up to be the best trilogy I've read. The scenarios of the Wallfacers, the intrigue of the Wallbreakers, and the incredible plot twists throughout make this a must read. Couldn't recommend it more, though many folks have said it bogs down at the beginning.
I feel quite fortunate that Ken Liu translated this book from the original Chinese masterpiece which was Cixin Liu’s labor and that it was distributed to the English speaking world. It was only through that effort that I was able to experience such a superb example of what I love about excellent Science Fiction…excellent science and excellent fiction!more