Rated of 5
It's not so much that I liked the characters in this book or even that I cared about them, but that they were fascinating. I especially liked Jacob, the former child prodigy, who changed his focus from his own success to his wife's. Everyone just gives him up for 'normal,' but Goodman makes it clear that he is every bit the genius he used to be.
The other characters are all intricately crafted. Since intricately crafting characters takes time, the mystery and 'action' of the story is more subtle. The reader wants to find out what happens and reach the 'revealing climax,' that is so common in books, but that is not what makes the story enjoyable, and the climax is not a peak, but a little hill that you almost miss. The social interactions of the characters and the layers of history revealed for each character give the book it richness. But you need some patience to enjoy it.