What IS revolutionary...
...is that there is no longer any need to design in the flat walls and ceilings of today's houses -- at all. Sure, if you want your current square furniture to not feel left out, but no need even for the furniture, when you can print a new couch as well.
To wit, the ONLY difference, to a 3-D-equipped contractor, between a square house and a round house, is the architect fee. Once that design file hits the printer's buffer and the power switch is thrown, you get a round house for the same price.