When we are towing our big trailer on a route I'm not familiar with I will usually plan the route with our Garmin RV760, and then use it's nav if appropriate, otherwise use the factory Nav.
Nice thing about having the Garmin AND GM nav, is I can pick and choose. While the garmin is nice, it's traffic isn't as accurate as the Nav system, the Nav system will give details on traffic incidences. And the Nav will give me fuel prices quicker than the Garmin, and in general I like the Nav system direction guidance better.
So, most of the time the Garmin is just displaying the rear camera view.
Nice thing about the Nav is that if I want info or changes NOW, within 15 seconds I've got an advisor on the line dowloading a route, telling me what resaurants (and reservations) if I want, nearby, getting me a hotel room, not just showing a hotel.
Don't need to call up a menu, select something, type in anything etc. to distract DW or I, just have another real person doing the work for me.
And they will do pretty complicated routing for me on the fly. Stuff that would have taken me 10 minutes on the garmin gets done in less than a minute.
I've found that the Nav system traffic is as accurate and responsive as my google maps traffic is, AND it give more info about incidences than google does.
And it tells me often miles in advance that there is construction, an incident etc. ahead instead of having to watch the garmin or phone for the same info.
One thing the RV 760 does do better is warn about sharp turns, steep downhills etc. when in the RV mode, so I'll keep the garmin on and listen but not use it for nav. works that way with the backup camera.
It's nice to have both.
