FSSM regarding graphic basic scenery is the best simulator that I knew till now. for my opinion no need to add others stuffs . then to take risk like was too often case with anciens versions to make heavy and unstable generating program crashs … was and staying stunned by the basic general quality about scenery details elevations mountains / grounds, more weather effects, keeping one excellent framerate I never did dreams about more , sure I did get some landmark availables really enjoyables . but existing airports runways are for me very acceptables and credibles, I no feeling need to add cars and buildings basics are already greats ..
My lone reproach is to don’t found vintage airplanes can’t wait to found propeller liners and others light legendary propeller at my opinion that lack cruelty .. (and maybe to can’t see replay sequences)