Voice Issues and Bad UI

This app is unable to lower the music smoothly, regardless of what app is playing music. It is horrible!!! Also when I hit "Start Navigation" its supposed to so that, not send me to another screen to choose more options, more of your ridiculous hundreds of options before navigating. 2-3 taps, thats all it should take. UI is way too busy. You guys dont listen to the consumer, thats going to drive your app out of the consumers phones. I just deleted this junk, it has become intolerable.

ygaroto about NAVIGON U.S. West, v2.4