I admit that I'm somewhat anal about keeping my BMW looking pristine. Frequent detailing, washing, waxing etc to keep my garage queen looking her best. Within several hours after washing or local driving the layer of dirt starts to accumulate again. Previously I used a damp microfiber cloth to remove this. While effective it was time consuming and left water smears on the paint. The California Car Duster solved the problem. It's fast. I can wipe the entire car down in under 3 minutes. This product saves time and is worth the money. Be advised that it doesn't wash a dirty car. It maintains the paint after the car is washed. You will not be disappointed.