Advice/question on tint darkness at night.

Hello, I am getting tint on my ford fusion at the end of the month. I’m going with a carbon fiber vs a ceramic just because of cost, and I care more about privacy than keeping the sun and heat out. The guy I talked to said most people do 20%-25%, I decided on 15% because I have a sand colored interior (🤮), anyway my concern is at night how difficult will I be able to see out of my windows? Just the five windows are being done not the windshield.