Here's a few comments about how well my Garmin 760LMT stood up and how I use it.
I still love it for the most part. I accidentally left it outside one night and it got wet. It didn't work for a few days, then it worked again. Yay!
The advancing planning feature continues to be my all time favorite! I'm planning my next trip, day by day. I use my Rand McNally Atlas to find the scenic or interesting routes. I enter this route into my Garmin using waypoints because it's rarely the faster route. Sometimes the fastest way to get exactly the route I want is to browse the map and pick a spot on the highway I want. Add that, browse the map to a find a place 20-50 miles farther along my desired route, add it, etc. Then I save and view the map to make sure it didn't do anything weird. This is a critical step because I may turn me around and route to a "better" road. If it did, I add more points until I get what I want.
When my Garmin absolutely won't let me go on a road (routes me around it over & over) I google "RV access on xxxx" and see what comes up. I'll may see that I'd be crazy to take my trailer that way usually because of narrow roads and sharp turns.
The GPS is great for telling me how long the drive will take. If it's more than 4.5 hours, I try to shorten it. I build in rest days.
And I change the route on the fly as desired.
Other useful tools:
While entering the route, I use my iPhone "Ultimate CG" app to find low cost or free places to camp (search App Store for "ultimate us public campground"). This app requires cell service so I subscribed to the website version which allows me to download the campgrounds to my Garmin using the free Garmin POI loader. When planning, I find my desired campground with the app and search the POIs on the Garmin. Since I know the name from the app, it's easy to add it to my route.
I also download POI lists for Costco, Sam's, and Tractor Supply Co.
I use Boondockers Welcome and Harvest Hosts websites (require annual fees).
I rarely have to stay at commercial RV Parks, but when all of the above fail me, I fall
back to the iPhone Allstays Camp & RV app.
I rarely make reservations at State Parks, but I often check their online reservation websites to see how full they are.
NOTE: I'm often out where there is no cell service. I was not happy when my Garmin got wet and stopped working for a few days. Fortunately, I had previously installed the iPhone TomTom app (USA $25) with full US maps (1.5 G
And I carry my trusty atlas and AAA state maps, just in case.
As you can see, most of the tools above are not free. The full set costs about $50 up front plus about $100/year for subscriptions. They easily pay for themselves in less than a month.
As always... YMMV