Agree. I look to Amazon most of the time but on items like this, there's not a huge number of them and I agree, they probably didn't prep it right. I'm very opinionated on prep work because when it's done right, I've always had success. I too have cut corners or cheated and that's when less than stellar results appear. Everyone's idea of a fully prepped windshield is different too. Mine....water clings.....zero beads or separation.....if it doesn't do that, it's not fully prepped. Only then will I dry it and ensure it's fully dry and then coat it.