I've tried it with a German Autobahn. I would say it's heavily biased to detect asphalt and replace it with some kind of pavement and flowers. Sometimes also the not so nice cobbled variant. It also had the space of 4 lanes and made a single one out of it.

Another experiment had a large construction site on the image. Kinda funny it left the barrier protecting the area completely untouched and just placed flowers on the other side of the road.

It's hard to get good or realistic results because it seems to hate grey areas (not in the sky) and likes green. So if there's a grass strip it's likely to remain unaltered. If it detect bushes it renders them to trees so people could spend time under them. So in conclusion, it knows what people would enjoy. In that matter it works out.