Does Flex Seal really stop leaks?

Ladies and gentlemen, I'm sure we've all heard the claims that Flex Seal can miraculously stop leaks of all kinds. But the question is, does it really work as advertised? I'm not just talking about small drips and dribbles, but major leaks that could potentially cause thousands of dollars in damage. Have any of you had experience with Flex Seal and can attest to its effectiveness? Or perhaps there are skeptics among us who believe the product is nothing more than a gimmick. Let's hear both sides of the argument and see if we can get a definitive answer to the question: Does Flex Seal really stop leaks?