My first Cairn module and first point crawl, it went great! The layout is easy to follow for prep and during play, all the details are super evocative (I highly recommend reading the descriptions of places to your players, it really set the mood well). The character descriptions are very evocative as well!
After running and playing so much horror and darker modules/games, this was honestly a nice change of pace. There is a good deal of levity (upper class bandits, a man on stilts about to crash into a butter sculpture) but also heart.
I highly recommend this as a one-shot with Cairn! Although I think it could work even better as a two-shot to really experience the setting.