I can show you failed Polyfiber and other system jobs as well....topcoats, glue, UV block coats... It's like anything else that's "new".... you're going to hear the ones that didn't have success, (for whatever reason) screaming more loudly than the vast majority that DID have success. I always tell people that using that system is like flying a tail dragger....it's not that difficult, but it certainly is different, and if you keep trying to use it like the system that you're used to, you're not going to have that pleasant of a ride. Land your taildragger the same way you do a 172, and it's not going to give you quite the same result...it takes different technique and thoughts to do it correctly. If you can pay attention and learn different habits, it works fine. I have to remind myself of that almost every time I use it, and I've been using it since the mid 90's. I've had some problems, but when I get HONEST about it, I can trace them back to me.
John