Critics have attracted me to that phone and I do not regret my purchase. It has many features that really change my life as voice control, the 2 strokes wrist to open the camera, notifications on the standby screen, unlocking locks that automatically appears when you move the telephone, reading the name of the caller and SMS automatically when driving ...
Audio quality during calls is extra. Autonomy is good and gives me a good day of use. The size is perfect to me and I was immediately hooked to the grip.
I think it is a very successful phone and if I find fault it would stay there, until I highly recommend this smartphone ;-)