I'm glad it works for you but man I am peeved that they instituted it in the katahdin woods and waters national monument area of the east branch of the penobscot in maine. People have been just heading down that waterway on trips since time immemorial and it's generally not a problem finding a site, but if it's particularly busy you would pull up and ask someone if they don't mind sharing. I've never turned a person down and I never will, but also I've never paid for a campsite on a river. I feel like paying to book a site just changes the dynamic of a shared waterway so much.