We got in early November 2011. comes a new car. It was driven extensively in winter and always stood outside, without shelter. After all, it was but often radiated with demineralized water. Now I wanted to do the spring cleaning in May 2012. First was vapor blasted hot. The steam cleaner was added. Then Hand wash with microfiber glove. When I then painted by hand over the paint, I was pretty frustrated. Despite careful laundering it was rough, so still pretty dirty. Optically worked the paint, however very clean. But as the 'pimple' get away? I then used the above product and could not believe it. After 2.5 hours, hood and roof of the large station wagons were again smooth as a baby-Popo. There were no scratches (also in raking light I could not see). The clay works with very little effort and can absorb a lot of dirt. The product ranges determined for each large SUV. The manual is good. If someone does not read this: The most important thing is that the clay always slides on a liquid film. Without liquid buffer it sticks quickly realized the paint. I would have forgiven even 6 star, if that were possible.