Our Garmin RV760LMT is certainly an improvement over the 5 year old Garmin we still use in the car. I particularly like the lane guidance feature that several times has kept us in the correct lane when passing through busy areas where it would be difficult to change lanes due to traffic. I don't think that is an RV-specific feature though.
I have found on a couple of occasions that the RV routing takes us out of the way for no apparent reason when the auto routing was just as good and shorter. The RV760 does provide a warning message if it does not know whether a road is suitable for an RV, but I have never had a problem (yet) using such roads.
2003 Winnebago Minnie 24F - Ford E-450๐