A great short adventure! I adapted it to be run in my Eberron game and it worked perfectly. Has elements of investigation, research, social interaction, and confrontation. I loved running this one!
This is an enjoyable short adventure for any modern era setting (easily adapted to a different era) especially if you like investigation-heavy game with an explosive end (and I do). The archetypes offer ready made non-action hero characters and the Essense is worth grabbing for those alone if you need such pregens fast.