Lifetime warranty. He told me if I drop a pic axe on it and it chips he would come back and do it again. I believe he would. Makes most of his money off off of big box stores and car dealers. He has thousands of pictures and tons of different options, and has been in business a long time.
I thought it was expensive, but it is like you said, write a check and enjoy it. I hate to pay for things I can do myself, but when you look at the cost of some of the high quality do-it-yourself epoxy, and renting equipment, and then the warranty.
I would do tile before doing the Home Depot epoxy again.