I have not subscribed to this, only taking the 14-day trial. The maps that it offers do not define the actual trails posted, but rather a section of the regional quadrangle. I can get better definition from my own copy of National Geographic’s “TOPO” which I can customize even more.
I did some searches on the Triple Crown trails and it offers specific information on individual segments, but as an overall resource IMHO, it is not worth $50. You can get similar info on the internet for free, for just a little more researching trouble.