Ive had tints on all my cars.. no problems whatsoever with the rain, smoke, snow, sleet or anything whatsover. I've also never had problems with the defoger, you will be fine. Just make sure you get it with a lifetime warranty. Lifetime warranties are great, but I look at the lifetime part as the company who is doing the work is confident about there work as obviously they wont last forver and neither will your car. someday either they will move/close or you may sell your ride and get a new one.

 

is there any tint between 20% and 35%, I think 20% is too dark (for my liking) , and 35% it too light..

 

I have 5% on the rear and the quarters and 15% on the doors, and have had no problems. Driving at night is a million times better because I am not constantly blinded by everyone else. There are some scratches on the drivers side door tint, but i hear it is from inside the door, not the fact that there is no felt. Either way, you cant see it from outside and i don't really care. I have the lifetime garuntee if i want it fixed

all in all it cost 123 dollars. I am very pleased with the look, it gets many comments

 

There is an inbetween, I had my door windows tinted with 30%...still legal, but dark enough to suit my needs

Agreed andyman, 5% on the rear and quarters is awesome...wanted to go darker than 30 on the others but couldn't risk getting pulled over.