I've had my Jawbone for about three months with no problems at all. However, I prefer to wear the headset all day and don't want to know it's on my ear at all. This is much better than some other bluetooth headsets in that aspect, but after 8 hours you can definitely tell you have been wearing it all day long. But the sound-reduction technology is for real. Also, I never change the volume of the headset... Just leave it on high the whole time and I never have any problems hearing the person I am speaking to nor is too loud in a quiet room.I guess I'm waiting for some comfort technology to match this awesome sound reduction technology.