Felt closer to a hands-on walkthrough than a skim, which helped map theory to day-to-day drafting. The moment that stuck was Module 3’s duct sizing example—walking CFM to friction loss, then annotating the Revit sheet with the exact layer names. I've already mirrored that flow in a repo and a small PR, though I wasn't sold on the brief detour into k8s metaphors and wished there was more on CI checks for drawings. the patterns are headed into our internal style guide, especially around HVACR callouts and arch notes.