Hey John,
I've been using it for about a year now as per Anthony Orosco's suggestion. It looks absolutely great on Silver and Champagnes. It is the topper I used on the 03' Ferrari Modena and the Porsche Cayenne.
It's super easy to use and has totally replaced my S100/P21S. You can do larger sections at a time than the other two, and to me, the apperance is much better. Just like S100, it's a wipe on/wipe off product. The durability seems to be comparable, however, I haven't used it as a stand alone product. Value wise, look at how much you are getting too compared to most others. It looks great on dark colors too, but I prefer TS for that.