I love these dungeons. They are small and simple and can be plopped in anywhere. Easy to stock and use and they make my brain think. And the price was right. The other reviewer was right though, a good bit of this product is blank pages. I mean its a PDF, we can print out the pages we want and supply our own blank paper it doesn't have to be in the product. The whole thing would have been better served to have simply skipped the blank pages.
Having said that, Planet Thirteen really needs to produce a much, much, larger book of these dungeons and link it with How To Host A Dungeon to make it easy to drop actual maps into the dungeon created with that system. That would rock.