What I’ve used so far has been mostly positive. I have mixed feelings with the Ceramic Spray and the Ghost tire shine. The Ceramic Spray is not very slick. The Ghost tire shine puts a good shine on the tires, but I don’t like the fact that is cures on the tires, I ruined one applicator because I didn’t read all of the instructions and it dried and made the applicator hard as a rock and I don’t know what the long term effects are on the tires.