I needed to drive my mom from her "snowbird nest" in Sebring back to suburban Cincinnati for the summer just a couple of weeks ago. I've always been a Garmin guy, and I always try to avoid the slab (even in a car), so I packed up my Garmin 660 and caught a plane to the US. Ran the 660 on her windshield and my Samsung 7R dual sim using a clip-on over the vent for just shy of 1000 miles. (My mom is a talker, so I've applied for an Iron Ears award).
Wow, a real difference!
The android was quite a few seconds ahead calling out turns; it gave me congestion warnings and alternate routing choices, and when I saw some dark clouds I brought up a weather app which automatically overlayed the road map showing real time doplar! All the while the Garmin sat there calling out turns about 10 seconds later - and yes I had uploaded the latest maps.
Will save the Garmin for my dual sport riding or if I download routes, but for just not getting lost . . . use your phone man!