* Sound quality via loudspeaker enough. Lacking some serious, but it is quite normal for this case size.
* Very good for voice guidance with Google Maps.
* Geniale this function Motion Detection: lights up and goes out alone. It hangs from the ceiling and forget.
* It is necessary that the passenger is silent enough that the microphone does not saturate and that your caller can not hear a sound ground. My 407SW has 130kmh on some agée road it does not pass, slow down. On smooth road or city journeys by no problems against.
Less, but not serious:
* The connection is lost from time to time with an iphone after a little out of the car. Turn on / turn off and go again.
* FM transmission via GRESILLE always a bit and it takes up the volume a background. Not great. So to forget.
My telephones with voice commands, I did not need the voice commands of the kit. We need it to connect a second telephone, but that's it.