I thought the concept of the build was really clever, but I did find the idea of fitting the carpets very, very odd.
Why would anyone take the risk of damage to their flooring, as frankly a good team of carpet fitters could have done the entire floorspace in a few hours?.
Although a clever idea, it is only novel in that the material of choice was steel, because as we have seen on GD before, a "HUF" house could go up with preinstalled services etc.