Quality has been a very interesting jumble of cool features and headache-inducing outcomes. Just reducing the number of potential duds/byproducts to 1 does so much for potential designs using quality.

Pairs great with mods that increase the chance for quality and/or increase the amount of boosts given by quality. This mod plus the ability to reach 100% quality in the endgame-of-endgame makes for some very interesting builds and even direct-insertion quality setups. Completely feels like what should've been the final achievable route for quality in vanilla.