Mostly excellent (I started taking notes to capture some of the more insightful parts that I wanted to make sure I remember) - especially the first 2/3 or so. Occasionally it gets a bit bogged down, in particular when trying to emphasize an opinion & perspective on something vs. his excellent narrative style of putting important events and trends in history in context. This can come across as a bit "preachy" at times, even to a mostly sympathetic reader. I think it would be a turnoff for someone who disagreed with his worldview. It didn't bother me enough to downgrade my opinion of the book but if I was offering him editorial feedback I would have suggested paring some of this back because I don't think it served to make the book more impactful and it was already a hefty read. Overall though I learned a tremendous amount and think I will probably re-read key parts of it at some point.