This one is the same. It's mainly annoying too. Sometimes it's smug - he rarely writes about his struggles and his failures, or even about the process whereby he learns to do stuff. I think that's because he's trying to be inspirational, and feels that writing about the process might be too disheartening - but it comes across as smug. Sometimes he writes dismissively about the people who criticize him, but often without much insight or understanding.
He's annoyingly inconsistent about what the point of the exercise is. Is it OK that he bought stuff in advance so that he could live without money once his challenge had started? Sometimes he implies not, but he's definitely done that...the solar panel, for example. Is it OK to receive gifts that others have paid for? Same inconsistency. Is he living off the slack and waste of industrial civilisation (like scavenging food from dumpsters behind supermarkets) or is he turning his back on industrial civilisation, and only eating what he grows or forages? Sometimes it's one and sometimes it's the other.
So while there are important points to be made about personal relationships with money, and also about consumption and happiness, and the psychological aspects of self-reliance...I don't think he more than scratches the surface. I don't think that what he performs here is scalable - we couldn't all live like that, even if there are a few things that it might be worth paying attention to. If I were a single parent trying to feed and clothe kids in a way that would help my family keep its head above water I'd want to throw this book across the room, and then maybe rip it up and burn it. There would be very little in it that would help me at all.