Fastbrick Robotics robot building a home - GIF

[odd one]

I don't see the cost savings. Sadly, labor for this type of work is not that expensive and it looks like they still have someone there squaring up the wall and scraping or pointing up the gaps. Now you not only have to have room for this large machine on a job site, but you also have the rental of the forklift to feed it. I can only assume that the machine can place block faster than in this video, 2 blocks in 1.5 minutes would get most guys fired or retrained.
The only advantage I could see is as the walls gets taller, you would not necessarily need to set up and tear down scaffolding, but they appear to still need to have someone QC and scrape/point up the wall....so maybe not.