AEROSOFT - US CITIES X - CHICAGO FSX P3D
I give this a 3 star. Keep in mind, you need pretty good PC to run this add-on. I am running I7 3.4GHZ and still feels little choppy. You have options to set your Scenery Density Switch to "More AutoGen Building, Less custom 3D buildings"(for lower end PC) OR more custom 3D buildings (for higher end PC). I have my set for lower end PC. Flying night time in Chicago, you don't see lights inside the buildings. In daytime, city looks pretty cool.