Got a chance to use these two over the weekend. The foam is amazing. Makes better foam than anything else I've used, and the smell will clean your sinuses (in a good way!). The seal is good, but not quite as good as the foam. Easy on and off, but the shine was just OK. Finished it off with some Graphene detailer and it looked like glass. Only real downside is the price. Since you have to use the full bottle each time, $20 every time you wash your car is a bit pricey. Maybe treat yourself once in awhile when you haven't got the time to do a full on wash/coating.