Buggy. Freezes. Randomly won't do things such as send a message and gives useless error messages "huh, there's a problem". Poor speech recognition. Update for 2020. Still a frustrating mess. Connectivity with phone and major lag at times. Also still struggles with voice recognition. Update 2022: I have a smartwatch. Android auto puts calls through to my watch Bluetooth instead of the car that the phone is LITERALLY PLUGGED INTO