I installed the Parrot Evolution in my wife car over 4 years ago and it sounds as good as the day I installed it. The uplink audio quality is the best from any car kit I have ever heard! Better then OnStar that is in her car when she use to use to call me from it. The downlink audio is great also. My loves that fact that when she receives a call the radio audio will stop and the speakers in the doors will play the ringer and when she answers the call the calling parties audio is routed to those speakers. Everybody she has talked to on it are amazed at how well the call sounds.The other great feature is the privacy mode of this car kit. When we are traveling and my wife's boss calls the rest of us in the car don't need to hear about my wife's next job, she presses the green button while on the the call and the car kit switches the audio to her phone.Overall I would buy another Parrot product again after this great experience.