Thanks for the link!
Just tried it to map a route to my sister's house (a ride I'm planning for sometime this summer). It didn't choose the route that I would select, but I don't know enough about the roads on her end of the state to know if these are better/worse/same as what I was planning.
I think I'll drop them a comment to see if they can add the ability to input your own estimated speed to calculate the expected ride duration...their calculation is showing almost 10 hours of ride time for a 106 mile route.