I did look at that article, thanks. Very informative. I don't use the tools very often. I got AHD 5 years ago when I bought and fixed up an old cabin. Now I have a potential new project.
Maybe you could help me understand this domain. How does the AHD product compare to what is available? It looked to me that Sketchup could do all and more than AHD but at a cost of $590 per license and a huge learning curve. That being said, AHD seems to be very good at designing homes and decorating them, something that might need more effort in SU.