This book is not about Ferguson's life, or even his time at Manchester United. The book covers two seasons - 2005-06 and 2006-07 - at Old Trafford. The book is in a diary format, and is basically about Ferguson's reaction to significant games and events. So don't expect too much on tactics, goalscorers etc. The events in games are secondary to Ferguson's reactions.
As it states in the book's title it is "uncut" and the language is raw. If you don't like swearing, and in particular the "f" word, then beware.
The book is about Ferguson's personality, and also gives a small insight into the world of football journalism, and the difficulty of trying to work with Ferguson. This is especially the case when something or somebody irks Fergie.
It is an enjoyable read and occasionally funny. The book is funny because of Ferguson's antics, stories of his actions, and the author's one-liners.
There's something in it for both Ferguson's admirers and detractors. I found it an enjoyable book.