I just purchased and received the new Garmin 785. I've been setting it up and putting addresses in, but haven't used it for travel yet. I really prefer the Rand McNally RV GPS, but I've had 3 and they all have failed. When you are on the road and it says "No GPS" you are screwed. One I sent back and received a replacement and it works "most" of the time, but I guess I have to say they are unreliable. I've had a Garmin fail as well, but it was years. . . and I mean many years old.
This Garmin has a dash cam and traffic as well. My DH recently passed away and I wanted a unit that multitasked, since I don't have my navigator with me anymore. Gone are the days when he would sit in the passenger seat and have a split screen on his laptop showing GPS and weather/traffic, etc.
Dale