I lived in Temecula 5 years ago and bought this because of the hard water spotting before I could dry the car. I lightly dry the car, then spray some Signature on a microfiber cloth to dampen it, then spray lightly on panels. If you keep your car nice it will look as good as the day you bought it. It also clearly protects as you will see water beading for quite some time after use. It solves the water spot problem for sure. I live in TN and pay the price plus a ridiculous amount for shipping because it is more than worth it. Buy a gallon it lasts a long time.
BTW, if you have not tried the Liquid Carnauba Wax, pay the money, it is amazing and will not destroy your arms. Wax is only effective if you use it and this is so easy to use I wax a min of twice a year and my vehicles are garaged.
