Some of the info was interesting, but mostly it was a laundry list of people that Bernstein knew when young (and that I'd never heard of and didn't care). Every once in a while we'd be told "so and so was now my best friend", which is great for him, but I wasn't shown any of it.
And I'd hoped for some Watergate stuff. It ain't there.

Fun fact: I found it hard to keep track of how much time passed between chapters, and once I opened my e-reader at a chapter 200 pages further along than the previous one I'd read, and I didn't notice until I checked the page count