Having read many of the positive reviews on here and seen a few of his vids on Youtube, I thought it would be good to give this a try.
I can see the attraction of this book for atheists, for those that have not come across Eastern religion/philosophy and philosophy students. But for me, it doesn't really do anything as it hasn't really extended my knowledge.
There are some really mind provoking ideas in the book that many people would enjoy like when seeing Matrix for the first time or Ghost in the Shell and give a completely different perspective. One central theme in this is the idea there is no separate self as society always intertwine with you. I agree with this from understanding the ideas of free will and fate/Hinduism rather than through his explanations. I think his explanation is better for the layman and those unaccustomed to eastern religion.
What I don't quite like though is his style of writing/model of thinking. His concentration is on highlighting contradictions and double bind ideas when I see no contradiction at all. He is highlighting problems when I am more looking for solutions.
What I don't agree with is the idea of either having to do something for yourself, or for society, and he constantly make them seem like mutually exclusive goals when I see 'self' as the society very much including 'me' in it. They do not have to be opposing forces (working for self and working for society) and if anything the right attitude to take is to help yourself first and foremost since you can always change yourself 100% and that is a big part of you helping society. And when I say 'help', I don't mean the pursue of pleasure but to do what is right.
His writing comes across as slightly clever, mind twisters with an academic curiosity. But what I am looking more for was someone that was going to give direct, simple, lay down on the way it is.
Those that like clever books that make you think a bit e.g. philosophy students. Get this book.
Those that are militant atheists that enjoy ripping apart religion. Definitely get this book. Help to give you a solid foundation to build a 'logical' world view to have and be more constructive.
Those that know about eastern philosophy/religion - can be skipped.
Alan Watts is a good bridge to Eastern philosophy using Western ideas. Or those that are really interested can go straight to Eastern philosophy and read up 'Jnana Yoga' by Swami Vivekananda (Theory) or 'Passage Meditation' and 'Essence of the Upanishads' by Eknath Easwaran (Practice). First two books are free on the net.