The physical infrastructure is fairly realistic. The colony has buildings and equipment needed for power, water, food and mineral resources for operation and expansion. The colony does need a command and control center. Somebody somewhere needs to be in charge. Lacking is a social infrastructure for the colonists. As part of the colony development goal it should include buildings like a sports center, clinic/hospital, school. The buildings don't need to actually do anything. Just as their built they count towards the martian city patch/award.
The geodesic dome was a great addition with version 1.04 June 2016, except its easily destroyed. No fix or update since then. Seriously disappointed.