I don’t think I have ever been as deeply emotionally moved by any other book as I was by this one.  I could not put it down even when it had me crying so hard I couldn’t see straight. The shifting POV was sometimes momentarily confusing, but as you get deeper in the book and start to know the characters in all their complexity, it gets easier to follow. And the emotional impact of seeing these life events and relationships through the eyes of each of the people involved in turn was just spectacular.