I was using Gogl maps until it wanted me to turn on a county road with a sign that said "Clearance, 10'3
"! Our Vegas measures 11'3"
Fortunately, I saw the sign before I turned down that road and would have had to unhook the toad and turn everything around before the railroad underpass.
That night, I got online and ordered the Garmin. It doesn't always choose the roads that I want, as it prefers interstate highways. Still, it is great for peace of mind. I use a beanbag mount, so I can easily move it to the toad or take it out.