Well, well... you've been busy!
Sounds really nice! Thanks a lot.

EDIT
I've done some quick testing and I found one, maybe two problems.
In the attached file you can see three rounded doors that I found in the Sketchup Warehouse. Two have the correct opening, the third has a square opening. It may be a problem with the model, and not with SH3D.
The second (and real) problem is the invisible box (see furniture list). It doesn't show at all. I use it quite often to make a hole in wall, but it's completely absent now.

Hans