Summary: Having used bluetooth earpieces before, was a little sceptical about how effective this would be. In use, it's simple to set up, conects both my iPhone and Galaxy S3 almost instantly, and wokrs well with both. The ability to connect to you in car stereo though is the real party trick, and so long as you tune well away from an external station then it works really well. No more wires all over the dash when streaming spotify through the stereo!
Summary: Purchased this as a result of reading other reviews. Installation and basic setup is straight forward, audio quality is reasonably good given the small size and battery power limitations of the unit. I have not had any problems with the microphone quality - all conversations are clear. When receiving a call from a known caller the unit announces the name without you having to prerecord it.
Summary: Bought this instead of having a full wired solution and it is brilliant, easy to use and the sound is really clear, only issue is that when it comes through the speakers in the car it isn't as clear.