I drive a full-size diesel van with quite a bit of cabin noise, so any headset I've tried before this one never worked out; the background noise was always so bad that whoever I was talking to was driven crazy.That is NOT the case with this headset. It's so clear, people don't even notice I'm using a headset.Connection to my Blackberry is quick and works every time. It might not be as sexy or compact as the Jawbone or other models, but it's very comfortable and you can wear it all day without an issue and without worrying about it falling out. It fits very securely.I WOULD have preferred a charging connection that was a bit more universal, like the one my Blackberry uses. So - don't lose the cord. A case would have been nice too, but that's not a big deal. I still almost gave it 5 stars simply because it performs extremely well at what it was designed to do.All in all - well built, comfortable, excellent sound, and dirt-cheap. I paid $36 for mine, and after using it for a while, there isn't a single shortcoming that could justify spending twice as much on a Jawbone. Nothing against the Jawbone; this is simply a very good headset at an excellent price.