Interesting for me because I was a young man in Silicon Valley during the late 60's-early 70's, working at or with most of the start-up companies discussed. Good memories, and good later-in-life context for those experiences.
As a biography, relatively useless because it is so clearly an "approved" biography. Annoyingly obvious from the first few pages in the laudatory adjectives and anecdotes used to describe parents. By ten pages in I was confident this biography would not have neutral objectivity. Give to me as a gift, so I'll read some more, but I'm not going to put in the time to finish it. I'm about 100 pages in at this point.