I did the spray and wipe type thing using Mothers? stuff last spring. Did every car I own(4) Washed, clay bar and ceramic. The stuff worked fantastic!Goes on and comes off very easy. Water still beads like mad on the finish after a WI winter beating. Will do round 2 this year. I can only imagine the pro stuff is better. My buddy had his Jag done new 4 years ago...water comes off it in sheets...never spots,etc. YMMV