Excellent products and excellent service! David and his team make it a great experience. I have the ceramic level tint in my older car and decided to spoil my new car with their top of the line nano plus the dermafilm windshield coating. I got 5% dark for the car with the ceramic. It looks great, but definitely hard to see at night (I.e. I needed to roll my windows down to back up into the garage at night). I am liking the 10% dark with nano more because visibility is better, yet it still provides that nice dark look I want. The extra dermafilm on the windshield is great too because now I have heat blocking abilities all the way around the new car. Summer, here we come!