Joe is pricey--buy you own a $100k vehicle. I have known him since 2013, when he OptiCoated my S. He also did cQuartz on my wife's S in 2015. He by now has seen over 1000 S and maybe 400 X (plus many other high end vehicles) for a variety of aftermarket things (wraps, coatings, dash cams, radar jammers/detectors, etc). He is really worth it and stands by his work. YMMV. And, BTW, I do not get any kickbacks or spiffs.