Just washed my car and tried a clay bar for the first time. FANTASTIC! Now it feels and looks likes a concept car. Everytime I went to the NYC car sow and look at the concept cars, their paint job always seem better than the reel cars. Don't know if it's because they are hand built, but the paint always felt like a mirror and no swirls. I'd recommend a clay bar to anyone. Also tried clay on my wife's 3 year old Eclipse and now that feels like glass. Great stuff!