I tried out the sample area with a party of 4 wanderers. The baseline mechanics are fun and the combat went smoother after we got the hang of declaring stances. Even with one player rolling garbage all game, nobody died and the boss was taken out in only a few rounds; I'd added one zone of 2 Inhumans and added a 3rd Frog to an existing fight to try and raise the difficulty up.
(Made 4 pre-made characters using the 7/6/5/4 stats, and while I did give 4 items each, the Arming Swords dropped and lack of needing their consumables evened out. I rolled for 90% of the enemy actions. If enemies had a personal loot pool, I rolled it each time.)
Should I have added even more enemies to account for only a 33% increase in wanderers? Should Greater Enemies have more hit points? I'm also intrigued why they would have a stance that only heals 1 Hit.