Because I spent a lot of time on the phone, I am very particular about BT headsets. I have tried every brand of BT headset you can imagine, I mean EVERY brand. I was so frustrated to a point I was ready to go back to wired headset until I ran into this little guy. This is by far the best one, hands down. My most miserable experence was with Jabra and Motorola. I had a lot of connection and audio quality issues with those brands.BT headset designers seem to favor visual appeal rather than performance. I don't understand by most headsets on the market are short and stubby, in which the microphone is right next to your ear instead of your month. Having microphone that far away results in having to turn up the microphone sensitivity, which cause the headset to pick up everything including background noise. Lack of an effective noise-filtering system such as the one in this Logitech headset, you end up with wind noise, car noise, AC noise, every kind of noise but your voice. In additional, the close promixity between the speak and microphone creates a feedback loop for a nice serving of constant echoing. I lost count of the occasions when my friends and coworkers on the other end of the phone tell me to "get off your crappy Jabra BT headset" or "take me off your Motorola BT headset". I am amazed that people on the other end can easily tell it's a Jabra BT headset because the horrid sound quality.Onto this gem, the sound quality is amazing, by far the best of the bunch. The WindStop system really does work. Together with the farther extending microphone, this unit produce the best sound both incoming and outgoing. I know many users complaining about the fit, but it's really a fault of the user. As one reviewer pointed out, there is a "correct" way to wear this, and I think it provides an excellent fit and comfort.I can't speak for all, but I personally don't wear a BT headset as a fashion statement. I use it as a mean for convenience and safety, so sound quality and fit are top factors for my consideration. On that note, this is a clear winner. I wish product managers and designers at Motorola and particularly Jabra take note of that. Jabra (250 and 250v models) being the worst with it's behind the ear design and a heavy-trigger button is really a very lousy product in terms of usability and sound quality. I am sure customers that raved about Jabra would rank this unit out of this world!