I have a older Rand McNally RV GPS. It came with lifetime updates. I can add additional points of interest like Tim Hortons coffee shops. I like the size of the screen.
Like many gps, when you get to destination it wants to make right turn into destination rather than just turning across the street.
A long time ago I had a Magellan that wanted me to turn off overpasses onto street below so I have never had much confidence in them. I really like Garmin and use them in my SUV. If you get a Garmin from Costco, it comes with lifetime map updates. When my RM needs replacing, I would get the Garmin RV one.