I generally enjoyed the book because I can't seem to get enough of Oasis! I loved the story of their first years together before taking the world up by storm and liked getting to know the many people who played a role in their lives.
With that said, it is plain that Tony has still a real problem with Noel. Now, I do understand that he is most definitely a difficult person, but he must be mentioned twice as often as the other band members put together. Yes, he did sack Tony, but he is painted as the bad guy from start to finish.
Tony hates his guts and it's his right, but the concept of "old Noel" and "new Noel" seems really forced to me.
Liam isn't mentioned as often and when he is, he is painted as a pretty chilled guy, who just wants to make music, struggles with celebrity and wants his big brother to like him. That might be true to some extent, but it's definitely not the whole story.
It's clear that Tony likes him and wants to highlight the good things about him. I'm all for it: this is Tony's own version of events! But... the end result is just really unbalanced and Liam isn't portrayed faithfully, considering his behaviour in certain occasions. Then again, this book covers only the first few years of the band, so maybe he really was more chilled back then.
I'm not going to say much about the writing style, since Tony isn't a writer and this book isn't about that. Suffice it to say, it's written as one would tell a story and for this type of book it works.
The title is a bit pretentious. Not only does Tony think this book contain the absolute truth but he also mentions that only this telling of the story, along with another book by their old frontman, are reliable sources. Sounds a tiny bit biased to me.
All in all I do recommend this book to all Oasis fans! It is a bit biased, but it's a personal story so it's part of its charm. It also definitely makes it hard to like Noel at times, but fans of the band won't be scared away ;)