For a start - this app is a bit slow compared to other facilities provided by other manufacturers. Secondly - if you are in the search area, you just can't get back to the favorites in a single swipe. Third - aplenty of times the notification of an incoming call is there, but we can't respond to it. Fourth - there's no haptic/vibrate notification to convey the 'connected' message. We need to dial and hold the phone to our ears to confirm the connection. Google should improve this important app.