Organization ROI: Code changes become cheaper and less bug-prone. Improves intra-team learning.
Engineer ROI: Code reviews are much easier. Gaining permission to refactor is easier. Make fewer mistakes.
Individuals gain awareness of where they encounter risk while coding and start to reduce the causes of that risk using Disciplined Refactoring.
Organization ROI: Improve productivity. Reduce story cost, immediate bugs, and future bugs.
Engineer ROI: Reading code is easier. Changing designs is easier and creates fewer bugs. Spend more time on stories and less time on bugs.