We have already completed half of the dungeons with the party using the Cairn system. It was very cool and fun. The combination of random encounters and room descriptions was quite amusing, and how the players interpreted them and made theories on how everything is connected.
One moment, I skewed up a bit because I did not understand the map very well. So it was not quite clear that the passage from the grave cave to the second level was under the basement. So I split it into two: one broke from the wall in the arc tunnels, and the other was a hole in the wall in the first room of the basement. I hope I will figure it out in the next session.