I've been using the platforms and there are some serious issues i've noticed, especially in apartments like San Myshuno:
You place a platform down in one of the apartments and then attempt to move the platform around and the outer walls of the apartment shift along with the platform! meaning you can expand the walls out beyond their original position.
In some cases around platforms there are gaps in the foundation that are invisible and you can see through the bottom, it is also the same if you have a platform near a door that is connected to a corner, you have a small gap you can peek through.
When raising a platform, the wall counters don't adjust properly to the ceiling height, especially on small walls.
Platforms should not be allowed to be raised beyond a certain height based on the wall height, that is to make sure teenagers, adults and elders can travel along those raised areas.
Ladders need a looking into around platforms, specifically within the 1 meter height requirement.