That looks awesome 
Can you tell the other values as well please Is the NumHem Value the only value you tweak in the .ini? Also are you using a custom hdri or just the basic bp skysphere? How do you achieve the burned out windows in white? I dont want my hdri showing in the windows. Also would you use a big box reflection capture for the whole scene or multiple sphere reflection captures like in koolas lightroom. Other opinions welcome as well