The e-book has a poor diagramming. It seems like a 90's book, before Adobe Acrobat or even MS Word. It's appearance is poorly done. Despite how it looks like, the content may worth its promo price. You can take some of the ideas the book presents or even use the entire scenario in your campaign, if you ignore some flaws. The worst of all was to describe in detail some "dungeons" while giving you only a couple of shallow characters.
It fails as a scenario sourcebook, but works as a campaign seed or even an stand alone adventure.
[3 of 5 Stars!]