I think the thing that has been a little bit ho hum for people like us is that it appears to be written for people who may not know much at all about football or Arsenal. It's been deliberately aimed at a very broad market. There is a weird little bit where he lists a random group of Arsenal players, with very generic sentences on their qualities and careers at Arsenal, stuff that football (and particularly Arsenal) fans would already know and wouldn't find very interesting at all. I found it odd that that part of the book even existed, and didn't understand the decision on what players were and were not in that list. And the bit about Ashley Cole was just a tease. He just says something like he was gutted that he left due to "a misunderstanding between myself and his agent in the negotiations". I mean come on Arsene, dish the dirt!!!!
However the book definitely rams home the reality that Wenger was so financially restricted from 2006 that the criticism of his teams in that period (approx 2007 - 2012) was grossly unfair. With hindsight it was remarkable that we were able to remain in the top four year after year, and even challenge for the title occasionally, when we had absolutely no money to spend, and even had a clause in our stadium loan agreement that put a cap on the wage bill. It sickens me to remember the stuff going around at that time. The criticism when we failed to win the title in 2008 etc. I remember absolute vitriol from supporters because we hadn't won a trophy for 2 or 3 seasons, it was so entitled. I guess it's as Wenger said, when you're used to eating caviar it's hard to go back to sausages...
For me, with the hindsight we have now, I only really see one period in his entire Arsenal career where he clearly underperformed (for a stretch, not just a match). That is 2016 - 2018 in the premier league. By that point he had the funds to do a lot better, and he had a group with enough experienced players to do better.
We should've won the league in 2016. Had we done that, things might be very different today. We went 4th, 3rd, 2nd in the three seasons up to 2016, then we faded away, and despite heavy investment from then on we didn't improve.
One thing I never quite appreciated was Arsene's record at Wembley (and Cardiff when Wembley was being rebuilt). He won 7 out of 8 FA Cup Finals, and 7 out of 9 Community Shields. Remarkable really. I still angst about that FA Cup Final loss too... totally dominated that, absolute smash and grab from Michael Owen... guess it balances out with the '05 final though (lol).