I really dig the simplicity of this system being a dice chain from d6 -d12. Having each roll be either a failure, setback (which I take to mean a small success w/repercussions) or outright success while skills have you make those rolls with advantage is streamlined bliss. I’d really like to try this out with my nieces and see what they think.
Definitely check out https://jasontocci.itch.io/2400 to find the "original" of this approach. There are so many related games now!