To be fair, Guz, the other coatings you mentioned are different chemistry (and that's not marketing hype). Bad applications happen and are not always due to prep error or using different manufacturers polishes/preps. And I don't have to tell you there's great differences in clear coats/paints and inconsistencies exist in applications. I've been involved with Optimum ceramic coatings since the original (when we begged installers to try it), and the vast majority of poor performances are due prep errors - using polishes with oil fillers, not decontaminating thoroughly, using too much/too little product, etc. Second are maintenance (what do you mean I can't take my car through a touch car wash?), and unreal expectations (I spent this much money and my car should be bullet proof...).