Unfortunately, I saw the movie before reading the book, so there were no real surprises for me. PKD has such a unique writing style and it's so half-hazard that the English student in me was cringing a little reading this. However, once you settle into his style, his story-telling abilities compensate for all that.

And I love how wonderfully he captures the nonsensical dialogue of drugged-out druggies. Also, I don't think the theories in this book are that far out (I don't want to spoil this by going on about them here). If you are at all distrustful of the American government's role in the War on Drugs this book should provide you with some interesting philosophical "what if's".