I have Garmin RV760LMT. 9,000 mile trip last summer, 4,000+ mile this summer. works fine. Had issue in NY state where gave me strange routing. Set intermediary points. Still routing strangely. Used Google Earth and found out low RR bridge it would route me around. Did its job. Another routed me around a bridge with low weight restrictions under RV weight. Another around a low clearance tunnel. Gives MPH posed for road and MPH traveling. Can set Miles and KM for travels into Canada.