First off, this book is over half shit. Basically you can burn the first 77 pages and nothing of value is lost. There's some 90s edgelord shit (dhampir race), weeb shit (cat-blooded race, over emphasis on OA weaponry), redundant shit (hunter class in a game with rangers), stupid shit (bards, jesters and a completely idiotic broken mountebank build).
The remainder of the book is two additional sections, the first is ~23 pages of GM advice specifically tailored for AD&D1E. This isn't bad. The rest of the book (~33 pages) is middling or less useful - more monsters, more magic items, nothing stands out as awkwardly bad other than some weebness. Surprisingly the section of inspirational material only includes one anime and some Japanese and Chinese movies.
If you're going to buy this, just buy the PDF and printing the useful pages, leaving the rest to rot. There are some good bits in the usable pages, but not enough for me to even recommend buying the PDF.
