The Harvesters is a great adventure that is also interactive.
The adventure itself has the feel of movies such as The Texas Chainsaw Massacre or House of 1000 Corpses. It is fairly straight forward and can be completed in about 4 hours.
While this adventure could easily be played with a group of combat-machine PCs, I think it really shines when "normal" characters are used. The set-up allows for that, "Oh crap, what have I done?" feeling as the PCs find themselves facing the law of the land and having little choice other than to do what must be done.
The downside is that, unless the Storyteller is careful, it can seem like stops along a railroad. NPC #1 knows so much, but he points the PCs to NPC #2, who knows more and so on. When I ran the adventure, so much was going on that it did not pose a problem. As a matter of fact, my group ignored one of the informants completely, finished the adventure and had a great time doing it.
The interactive portion of the PDF is really neat. When the major NPCs are described in the adventure, you can click on their description and you are immediately taken to the character write-ups. Pretty neat. Read someone's description, click over to check out their stats, then click back to what you were reading.
For me, the whole interactive thing was useless. I printed the adventure out. Still, if you have a laptop at your game table, this can be truly nice.
As I said, this adventure brought images of some lonely horror movies that take place out in the middle of nowhere to my mind. That, IMHO, means it succeeded in its task.
If you're looking for a good into adventure for the World of Darkness or just bought Midnight Roads and are looking to test-drive it... look no further.