I was excited at the prospect of getting this book but when I opened it, I was dissapointed by its contents. I was expecting rules and guidelines as to how to create balanced and proper NPCs but rather I saw a lot of missmatched classes, especially with the "monster" types like Mindflayer Assassin (huh?). In short, I was expecting a lot from this material, hoping this would help me create NPC's (enemies or allies) using sound guidelines but rather the entire booklet is just full of silly and ridiculous samples.If you're not feeling creative, then this might help you. But, if you need to make a perfect villain or ally in your campaign, then stick with your own imagination and it might save you a few bucks!