The headset works well with my iPhone, but since I haven't used other bluetooth headsets, I really don't have anything to compare it to.  I have friends who had headsets from other manufacturers such as Motorola and I would comment to them their headset sounded horrible. I haven't had any complaints when I talk on the Jawbone. I've asked some how I sounded.  I've been told it sounds pretty clear, even better than my corded Plantronics one I had previously.  I haven't had any problems with getting a good fit or breaking off the ear loops.  My only gripe is that I paid extra for the 3-5 days shipping from Amazon, and it still took over 8 days to receive ... so save your money and go with the free shipping.