I have used a number of bluetooth headsets before (HS850, AX2 Bluespoon, and an older Plantronics model) and this one is by far the most comfortable and secure once you put it on! It's a bit bigger than the others but you don't even notice it:)The only drawback is that the plug is different than anything else, so you have to carry the plug with you to recharge it - fortunately it holds the charge on standby for a few days with a couple hours talk time.