That's life..... different experiences for everyone. My point was that they did not stand behind their work. Anyone can screw up and do the process incorrectly, no matter how good the company is. If they screw up and stand behind their work and fix it, I'd recommend them.
They did my downpipe and it came out great. But the other work they did for me was ridiculous. The coating literally burned off at idle and they didn't want to know anything about redoing it. $300 up in smoke, literally.
Most places you go to are going to use Cermakrome or something just like it. Wherever you go, ask them what they use. Since most places use the same stuff, the differentiator is their service and warranty.