If you want to know why the first DWG import didn't align with reference planes in the default wall based family, you can read the reason in this forum topic: forums.autodesk.com/t5/revit-architecture-forum/dwg-import-to-family-not-at-origin-in-wall-besed-family/m-p/10663611#M334288
Nice demonstration. Thanks alot. Side note, for water closets, beginning with (wall based family template) caused us some problems when trying to host on a wall from another linked file (like architectural model). The solution which worked with us was beginning with (generic face-based family template) then changing the Category to (Plumbing Fixture). This way it can be hosted on any face from links. I believe this workflow is quite famous for an expert like you, but I'm writing this comment for beginners who are watching your videos. Keep on the good work. 👏
Great little tutorial, I found your voice soothing, which is helpful when you have ADAH and trying to learn new software...Your approach was simple and well-presented. Thank you