The Durabak stuff seems to be more durable than the Herculiner, but It doesn't look as good in my opinion.
Like Joopin said, put it on thick in high wear areas. It's more about looks than anything, the protection provided by these kits is minimal. You have to treat it like paint for it to last, it's not a replacement for a $350-$500 sprayed in liner that gets applied up to a 1/4" thick, so don't expect that.