What a great product!
This is basically a mini setting (not adventure per se) of a prison. It is designed to be able to fit into any campaign, as such this is more of a tool than anything else, and it definitely hits the mark on what it aims to achieve. It is very well written, and perfect for those DMs (much like myself more times than not) that dont get a lot of preparation time with busy lives, so that they can pick this up and run with it, as it offers adventure hooks and a setting.
A great resource that everyone should have in their "just in case" folder.