The Resilience Points mechanic is a very cool twist on roll-under systems. I've seen a couple diceless systems use something similar, but never pitted against an adjustable die with which you're attempting to make the roll.
Speaking of adjusting the die, that's my one big complaint: I wish the rules were clearer about exactly how the GM is supposed to adjust the die. One step up or down per trait that matches? One step max if any trait matches? Just go by feel in each situation? It might be worth a half-inch of text to explain.