This is the first BT ear piece I have had that actually works the way it should.  Very light, fits in the ear well and after a couple of days I almost forgot I have it on.  Some people complain about the unusually long button hold to end a call, but I have not had a problem with it.  Battery life is excellent.  Not as good in the wind as I had hoped but this is true of most BT ear pieces I have tried.  In the car works like a champ.