I wanted a headset unit that would provide good fidelity so that I can clearly hear conversations when I am driving. I own other Plantronics products and I believe that they are a leader in headset technology (not just bluetooth). I have found this unit to work exceptionally well. I do agree with some others that the on/off switch is a bit difficult to manuever but it is not an issue for me at all. The unit is very comfortable to wear, feels firm on my ear (i.e., doesn't wiggle around are feel as if it about to fall off). It comes with a couple of foam windscreens which seem to work very well. However, I do have a minor compaint. the windscreen falls off a bit too easily.