This is the best headset I've ever used. The fit is just fine and it's easy to forget you even have it on. The loop thing is a little awkward, but it does the job well. Once you get over the feeling that it'll fall out of your ear and realize that it won't, it's just great. The sound quality is just excellent, and my wife doesn't complain about the air conditioner whistling into the microphone like she has with other sets.So, on to the annoying quirk, which will probably not affect most of you. The thing is, I have a somewhat unusual desire to keep the headset actually in my car. Hard to believe, I know, since no headset maker ever seems to include a car charger for the thing even though the car is the only logical place I can think of to keep it. Since I have a power inverter, I have the tiny charging cradle hardwired to the car, and therein lies the quirk: Placing the headset in the cradle automatically shuts it off. This means that in order to place or receive a call that you have to take it out of the cradle, then hold the power button for four seconds, then press it again to make or receive the call. For making calls that is no big deal, but for receiving calls the four second delay could easily cause you to miss the call, so I often find myself answering the call on the handset and transferring to the headset afterwards. It's a slight annoyance but, again, probably one most people won't run into.On the plus side, mounting the little charge in the car was very simple. I also can't comment on battery life since it is constantly getting recharged.