any one know if the wax as u dry quick detailer is worth it, and do u need to wash your car every time to use it, can i just spray it on a dusty car and wipe it off? whats the best way to use this product or isnt it worth it?

Spray waxes huh , well if you use a clean damp chamoise and a micro fiber to follow it should work as well and wont require rubbing over and over just a quick wipe. Another useful thing if its in a showroom or in a garage you could simply use a wax treated cloth , they work awesome.