Not my office, but something I've been working on. Yes, Autocad material editor sucks. Take note of the cylindrical tower in the back. That's supposed to be Austin stone, but it stretched it. Yes, I could have done it in Viz render, but it's still not as good as the real thing. Yes, the facetres could be higher. All-in-all though, I like how easy it is to work in ADT. As for a good modeling and render engine, for those of you looking at 3ds or Maya, etc. If you want something like 3ds, give
blender a try. You will have to read the tutorials, though. It's nothing like you've ever seen before. At least, I've never seen its type of layout before.