I think the key, and it's what consumer reports said in their review of the product, is to make sure that after any of these "repair" systems you apply a good coat of wax. I first tried a buffer with wax on the damage on my car and I could not get the scratches out of the clear coat. That's when bought this stuff after reading about it on consumer reports. I applied it with the included cloth using the first tube, allow to dry, wipe off, applied tube 2, used clean cloth to polish, allowed to dry, then used a buffer with quality wax and the damage is no longer visible and has survived so far thru a car wash and several days of rain storms. I know the directions on the first tube call to wipe with a wet cloth but for me that seemed to remove the product so decided to use it like a wax.
I was really worried I was gonna have to go to a detailer and have the clearcoat fixed. This $13 bottle so far looks to have saved me a lot of money

If all I gotta do is keep up with the waxing I'll do it.
I did have 1 scratch that was really deep into the clear coat. It was the scratch that was in the car when I bought it. The dealer refused to touch it and said the only way to fix it is to repaint the panel and they refused to do it. I've not yet decided to try the wet sanding repair that the manual talks about. I have no doubt after dealing with it on the other scratches that it would work but I wanna see how well the "repair" weathers before I go to the panel with sand paper. heh.
I hope you have as good a luck as I did with it. The scratchs I got out looked like someone took a low grit sandpaper to the rocker panel dulling it all up down the entire right side of the car. Now you can't even tell.