Listened to the Audible audiobook.
Part of the way that this book is framed is, obviously, around the various major figures in the history of the Morgan banks, and this very narrative first approach *really* worked well for me. However, I suspect it's also a framing that would work less well for me in a book-- in the audiobook, it's very natural to follow a story and jump back or forward in time a bit to follow a different story.
I found the first two major sections (the baronial and diplomatic ages of banking, as Chernow puts it) to be absolutely fascinating and deeply engaging. However, they're also the sections with the strongest narrative framing-- I felt like some of that editorial focus is lost in the third section on the casino age. Perhaps that's inevitable as the author was writing a lot closer in time, and had less of a buffer to see how things played out and what influenced what. Or perhaps it was the time crunch the author describes being under. :)
Anyway, very, very enjoyable, strong reccomend.