Although I've never played NetHacks and it's ilk, I played D&D when I was a kid and know the culture. This book was a fun listen.
The book is a good review of the history of Roguelike games. A category I was unfamiliar with (even thoughI I had played one in the early nineties) The book is fairly short which is good as an introduction. It is not an exhaustive history so if you are familiar with the genre you may feel it lacking. Good reader, perfect for the material.