I have been using this from past 15 days and it is working like a charm. My friends have got expensive phones around 20k, but my phone have some of the features which are not there is their phones. Battery life is decent.
In some reviews I read that the microphone is not good, but trust me It works very good. It actually reduces the crowd noise so the person at other end can hear you very clearly even when you are at noisy places. Awesome product.