I am overall satisfy with its performance, but it could be much better. For instance, when the unit is turned on for the first time (daily), you need to make an outbound call first before the mouth piece picks up the voice. Once that's done, the unit should work fine the rest of the day. Also, it picks up surrounding noise easily. When making a call, make sure you are in a quiet area, otherwise, it'll find the wrong contact to dial. The ear-piece can become loose and falls out some times, so it's good to shove it in every once in a while. Other than those complains, the unit is small and easy to use.