AutoCAD support would be awesome. I have a couple friends who run their own stainless steel fabrication & kitchen install business, and getting salesmen and business owners to give them accurate measurements is a huge pain point for them.
If a wall shifts 1 inch across 20 feet, they can build for that, if they have those measurements. But when they are told to make a sink-with-backsplash square, and there's an ugly gap between it and the wall -- well, reworking that tiny gap is almost as expensive as building the table itself.