it works great for my car and my old lady's cavalier. The only problem i have had with it (it's been used about 7 times now) is that after waxing, the first washing doesn't dry spot free. other than that, i think it works good.
50' hose and shade was 60 feet away! it was a nice winter day with the sun low in the sky...wasnt a 95 degree july day...and the car was cold...but after i bought a 25' hose to get me in the driveway and shade, moved it into the garage, it still left streak lines as the water receded.
I used my usual damp chamois afterward to get the streaks...but that defeats the purpose....white- red- silver...i can see it working....triple black car....naaa
Did use it on my harley chrome and it worked good.