I applied this to my new garage before I moved in in 2001. It's held up OK but not great, that being said I didn't put it on as heavy as I think I should, just wanted a basic seal to help prevent fluids from penetrating into the concrete from auto leaks. I do a good amount of auto work, and especially around the 4 wheel areas from brake dust, grease, etc it is extra dingy there.
I wonder if I would have put a clear over it if it would have done much better.
But sure looks better than it would have with nothing applied!