The biography is a complete disaster. After I finished reading it, I found that there was nothing to take away. Actually, I highly recommend John Siracusa's point-by-point dissection of the biography at 5by5, the show is called Hypercritical and listen to episodes 42 and 43. Link: http://5by5.tv/hypercritical
Siracusa pulls no punches and each and every one of his criticisms is well thought through.