Won't give final rating because I didn't finish the book. I enjoyed the first book of this 'series', however this book was basically a compilation of what could've been footnotes throughout the previous book. There's almost no logical order and the author basically comments while reading the first book.
As a sidenote: in the introduction the author complains about people downloading/reading his books without paying for them. Which is very ironic, given that the author showed no remorse whatsoever whe' he was downloading software worth millions.