Had a RV/Truck specific Garmin that I hated, you couldn't differentiate between a truck and an RV, so you were constantly unable to plot a route that traveled over "No Commercial Traffic/No Truck Traffic" roads. What a pain.
I went back to a auto oriented Garmin Nuvi 2539. I loaded the Low Overhead from a site, and other Points of Interest, and campgrounds from POI factory. It's worked just fine so far.
However I never use it as a route planner. I plot out my routes in Basecamp and transfer them to the Garmin, then I double check them to make sure they're correct. Asking a GPS to take you somewhere and then relying on it to do so correctly usually is an exercise in frustration.
