Despite the 5-star rating, I'd give due warning first: the adventure is most enjoyable if you're willing to let go of the 2-hours that it's supposed to be run for. The craziness of sending 3-7 adventurers to rescue 20+ dwarves from 30+ ogres aside, there are incredible potential in this module, allowing PCs to employ plenty of creativity. Do push them for the Set Piece finale, the players would really thank you for it.