After having read drafts of the core book during the Kickstarter, I (belatedly) started reading the final published version and saw the section on Levels of Difficulty (p 41).
First off, I didn't remember seeing this in the prior drafts, though I didn't save them so I can't go back and check. Anyone remember when they were introduced?
Second, I'm curious about the advantages and disadvantages of Levels of Difficulty (requiring multiple successes) vs. subtracting one or more dice from players' dice pools as in other games. From my analysis even a "Challenging" check is drastically less likely to pass, especially if the player started with five dice or less.
Although the rules do say, "In extreme cases, the Gamemaster may decide that it takes more than one success to succeed." (Emphasis added.)
For those who've gotten to run Vaesen already, or who have experience with Tales From the Loop: how did Levels of Difficulty work for you and your players? Is it simpler in practice than deciding how many dice to remove? Or is it one of those rules you use with caution, if at all?