I took yesterday off to hang out with my baby. I was able to try out my P21s cleaning kit (wheel cleaner, wash, pre wax, wax) I am very happy with the results. I am extremely happy with the results from using the Zymol lens cleaner. My headlamps had a little yellow and fading tint on them. The Zymol cleaned them up like new... Very good product from Bavauto for only $23.95... I will stick with the P21S for awhile until I get crazy and try the complete Zymol set.