Exactly. The robot will always be at work everyday, never fails a drug test, and doesn't complain about working long hours. I'm sure they're also working hard on increasing its precision and speed over time too.

Obviously it's not going to be cheaper or easier than existing construction methods yet. But they have to build things to figure out ways of improving it. Also they only need a crew of 4 to 5 people on site while it's printing, so that is a benefit of this method.