Yes, to using it in a class C.
I have a 2797 and love it, a lot you can do with it.
If you go to apps and page down to TRIP PLANNER, then NEW TRIP you can set up where you want to go with stops or via's along the way.
Do yourself a favor and go into settings and set the calculation mode to Fastest Time, and Navigation Avoidances to avoid unpaved roads unless you plan on driving unpaved roads.
Also on your map screen you can have on the far right distances to various items of interest like gas stations, food or my favorite rest areas.
I have had the 2797 for about a year and I'm still finding new things it will do. I love the size, I can actually read it in the MH unlike the ones I've had in the past. The only issue I have with it is the bluetooth doesn't work well.
If you have any questions you can PM me.