The Pipeline is more than just a Call of Cthulhu scenario. Inside you will find some really good options for making the environment come to life, adding a bit of NATURAL horror to the usual supernatural! This product also contains great handouts, maps, new equipment, NPCs, and more... greatly adding to the value of the product in my opinion.
The environmental options are really well presented and they make sense. They provide you with a lot of options, while not forcing you to add anything you don't want should you feel the game is already deadly enough for your particular group. Personally, I like my horror games as deadly and scary as they can get, so I'm certain I'll get good use out of these new rules!
The next part of the book is the scenario itself. The guys have really done a great job with the presentation here, laying out a thorough and easy to follow timeline and really going into great detail on all of the locations and scenes. Oh, and there are a LOT of them, too! This is not a one shot scenario, and I expect it to last at least three sessions for most of my usual groups. The locations and scenes are laid out in a sandbox fashion, and aside from the timeline of events that will occur without player character intervention there isn't any railroading to be found here.
The handouts presented are plentiful and of great quality. They do a great job of supporting the aesthetic of the scenario, and are easy to make use of whether gaming at a live table or via online play.
The final portion of the book details dozens of potential NPCs, presents 8 pregen characters should you need them, and detail some of the new/unique equipment for this scenario. All of this is supported by some great images and artwork!
In conclusion, this is an excellent supplement for Call of Cthulhu, on par with some of the great official Chaosium releases in my mind! It looks great, reads great, and pretty soon I will get to find out just how great it plays!