For about 17 years, was a CAD Manager at my last office using ADT 2006. This was painfully complex and customizable, but it was AutoCAD, so it was 'industry compatible'. I'm technically savvy and know what it takes to put a good set of plans together. Fast forward, I've been mostly out of the industry for the last three years, and moved to Colorado.
I have a contractor friend whom I've been doing CAD work for, but the ADT 2006 I've used is not cutting the mustard for 3D visualization. Or elevations. If you have any experience with AutoCad, you know my frustrations with drawing things multiple times and changing multiple times to produce drawings. My friend (the contractor) told me about Chief Architect, and my immediate response was, to direct him more towards either Revit or Archicad (my preference), since I had heard very little about CA. After a little more in depth review, I have come to appreciate CA for what it is, and man, the potential for saving time. Along with pretty good 3D rendering abilities. In review of a website, I noticed that Home Designer Pro (HDP) has bi-directional support with Chief Architect.