"Mist is another story. "
Yup! I will never again use any type of windshield treatment. PPG had a product they warranted for the life of the windshield. The glass installation people convinced me to have them apply it on a new windshield.
I said ok if I don't like it would they remove it they said yes. I tried ti for a while. It's nice in normal to heavy rain bur light rain to a mist it makes it hard to see especially at night,
I told them to remove it. They TRIED! I was not happy with their results and they replaced the windshield.
IMHO nothing better than QUALITY OEM wipers and 20-10 wiper fluid!