Good ideas, even as inspiration for 5e. I do agree with the other reviewer, that these ideas could have been distilled down and it would have resulted in a more usable resource.
This was an excellent download. There were quite a few good ideas in the book, however I dont really enjoy having to read and use 5 pages of info to set up a trap, it would be nice if there was a book with simpler ideas (ie riddles, puzzles etc.)