i can understand these kind of prodcuts, but i really dont see the use.
It might be the water in my area is suited for good beading off the car, but ive always been able to sheet water off cars (90%+) on a detailed car. with an open ended hose obviously! then follow up with a miracle drying towel.
Maybe im more opposed to this than others because now i have to think of detailing in a commercial way. In that sense its a total no-no.
but as i am still passionate about detailing as a hobby of mine, there is still a part of me wanting to try this, or time to dry.