Best GPS for RV

We also have the Garmin Nuvi 465t and like the fact that we can switch to truck mode when driving the motor home and with our height and weight. And then we can switch to car mode when we are using it it the toad. As full timers and almost always traveling in new-to-us places, we wouldn't be with out it. We really can't compare ours to any others, but we would note that there are frustrations. Sometimes addresses just don't match up to your gps location as you learn as you have just blown by them with no good place to turn around. Sometimes when you first are taking off, it just doesn't seem to tell you how to make the very first move. At times it is recalculating when you know you are on the right road only to recalculate again back to where you are which can be a bit disconcerting. But the pros definitely outweigh the cons.