I used iOS 6 maps to get from Peabody, MA to Boston. It worked great. I plugged the iPhone into my car stereo AUX port, and had the Maps app guide me while i listened to music.
Just like in an embeded car nav system, the music level was reduced when the navigation instructions were read.
I did think that the speaker was a little soft before plugging into my car's AUX port.
Since I was driving I didn't turn on the alternate views until I got to stop lights in the city.
They maps look great, and on this trip, it got me to where I wanted to go without error.
David Pogue didn't have the same experience: A Map App, as Sleek as iPhone 5, Is Often Off
Join the discussion on my Google Plus page.