Need new GPS looking at RV GPS what do you like

I have owned several GPS units that were suppose to be trucker units. All of them screwed up more than once. I went back to a Garmin 2757 with a 7" screen-easy to read. My DW is the navigator and we both check maps etc. before leaving including a truckers reference to locations of low bridges. I think they charge to much for the "trucker or RV" type GPS. You can download all POI you want. I put in an extra chip for this-they are cheap.IMHO