We also have the Rand Macnally 7710 and have been very pleased with it. This is our first year of Rving so alot of this is new to us. Our was a gift so we did not pick it out. You enter all the info about you rv or camper/tv and it plans the routes accordingly. The first couple of times we used it we kind of knew the route we usually take and the gps gave us different directions. The nice part about it was it took us on roads the we were very comfortable towing our 5er behind us. It also has all the Woodall listings as well as rv service centers, rest stops......JMO