Last week I bought my pre-order of Don't Lose Your Mind. Having read the PDFs now, I'm genuinely excited by this. The book adds good content to the game as well as great gaming tips for playing characters and for running DRYH.
The other thing I liked about reading the PDF is that it prompted creativity for me as well. Text in the book spawned more ideas in my head. That's a good thing - a very good thing. I like it when a text stimulates my cerebral processes.