Long Term POR-15 users - Are yo still happy with the product?

i deal with a bunch of resto shops in my media blasting business as well as tons of back yarders. not one of my professional shops use por-15 but lots of back yarders use it.
i think that speaks quite a bit for the product.

blast, epoxy, seal, topcoat. forget about it. and... at the price of por-15 you can spend a few dollars more and do it right. not much difference in price

if you gave me por-15 for free i would not use it. if you paid me to use it i still would not.
not hack any of your guys work, just my observations/experience in the business.