I have mixed, but mostly positive thoughts about this book.
While the advice is sound, I found myself unable to focus more often than usual. This is partially personal - I'm not interested in producing EDM or dance music overall, I'm more interested in ambient, orchestral/sountrack and IDM, so part of the problem was that I'm not exactly the target audience.
Most of the book is very good. Short paragraphs get right to the point without sounding like they were written by someone overcaffeinated. The book is doing its best to not be dogmatic, and yet give advice as specific as possible. The authors are kind enough to keep reminding readers by using phrases like "almost always", "practically never", etc. This is a small thing, but I think it is important because, after all, most of current music started in experimentation and breaking the rules.
The reason why I found the book great to read before sleep is that I couldn't relate to a lot of step-by-step guides, which were mostly focused on Ableton, Logic & Pro Tools. Obviously these are easy to transpose to whatever DAW you're using, but my problem was that I never had a chance to apply the knowledge learned immediately. I can imagine I would benefit from the book much more if I immediately tried out every lesson learned.
I will keep this book around and will definitely go back to individual parts over time as needed - as with any art/craft, you cannot properly learn everything just by reading about it. The book was clear enough to be read sequentially, but I think it will be better as a reference guide and workbook.
A clear con: I found several typos in FOURTH EDITION (2018-05), including a dozen uses of my pet peeve phrase "x comprises of y". Take your book, replace "comprise[s]" with "contains[s]" and if it sounds wrong, you're using it wrong. *drops pet peeve mic*
tl;dr: Great if you produce EDM and have time to try the material right away. Useful if you're relatively new to digital music production. Slightly useful if you're starting work elsewhere in the industry (mix/mastering engineers, DJs, singers, etc).