I took a trip from WV to the west coast using only secondary, and kind of middle of nowere roads through Texas, New Mexico, Nevada, and many states like Montana where you would have signal using my iPhone with no problems at all. It took me a month and a half. That said, I believe the least amount of hardware you have to install or connect on your bike, the better, just my humble opinion. I thing is only worth it for hardware that is a must and give you no other options. With the GPS you have to use more hardware to mount it, connect it and on top of that keep it updated. I don't even use a cradle for my phone but instead a magnetic mounting installed with the existing screws on the handlebar, and it works exactly as expected and I can move my phone sideway for google maps. That gives me all the flexibility I need.