I have both of these sets, and am looking forward to future releases in the line. During the middle of a game they're very convenient for a dungeon on the fly, or as a larger dungeon generator when you're planning for a session. I should also mention that I've used these for a sci-fi rpg just as well. The dungeon set worked pretty well for ship corridors in that regard. I'm hoping to see a set of "road" cards in the future, for when a party is traveling between locations.
[5 of 5 Stars!]