I have finally finished reading the book, having read 116 pages today and I can say that I more or less agree with what has already been said in this thread.
In the book, he portrays himself as somebody who has gradually matured over the years, moving from being the man about the town to somebody who desperately wanted to break into management.
In the early chapters, he describes his troubles at Barlinnie before offering an insight into his development and the managers he worked under - you can draw from this that he clearly preferred the calmer managers like Howard Kendall and Walter Smith to more authoritarian managers like Jim McLean. This seems to continue into his own coaching career, as he shows enormous admiration for Carlo Ancelotti in the later chapters of the book.
He offers some account of his injury troubles, but I just felt that there was something missing in this part of the book and his description of his relationship with David Moyes - whilst honest - did not make for pleasant reading.
My main reason for wanting to read this book was to gain some insight into what on earth went on behind the scenes during the Moshiri years and this book confirms some of the things we already knew as supporters, namely recruitment being diabolical. Marcel Brands was portrayed as distant and unlikeable, with there often being many differences in opinion - especially on Cenk Tosun (before Brands joined).
My favourite part, which I found quite amusing, was the story of preventing Carlo Ancelotti from falling prey to a scam caller when on the team coach. There is something quite odd about someone as brilliant as Ancelotti nearly falling in to such an obvious trap.
When all is said and done, the book is what it says on the cover: an upfront autobiography. Since Ferguson is certainly someone who evokes strong opinion, most will probably judge the book in line with their preconceptions of him. Only my personal opinion, but I would recommend it.