Just crossed the four month mark from my initial application of the Griots 3 in 1 and I’ll say that the product is still working even after all this time. I did however do an additional application of the product today. While it hadn’t completely failed on any panel, it is certainly starting to break down and show signs that the product is weakening in multiple areas. I believe this is rated to be a 6 month ceramic wax and I would say that probably seems about right in a real world, daily driver setting. It may actually last longer than 6 months, and many claim that it does. I figured I might as well reapply so that I continue to get the full benefit from the product because I could see that it was working less effectively from when first applied. With that, I am still very impressed with the Griots and my original opinion is unchanged. For $20, this blows away any other comparable ceramic/semi ceramic wax spray that I have used. Will definitely keep a bottle in my detailing lineup.