This is by far the best dungeon mapping program that I have ever used! The controls allowing you to adjust sizes and percentages of features, rooms, and size of the overall layout allows a very customized map. Well worth the price. It's an excellent value for the price for any GM!
This book and it's companions are a nice modular game system. I liked the way it is written. The system is easy to understand and use. The engine seems unfinished and there is yet another booklet on the way. Give it a try. The companion books are a great tool for any GM. Thanks Levi! Keep it going!