Final update: I've had it with this thing and can't replace it soon enough. It is now constantly losing sync with my phone, and when it does sync, it seems unable to activate the voice prompts as it used to do. Without being able to use voice features, it's almost totally useless for driving, which is the main reason I purchased a bluetooth headset. Note: despite changing my rating, the system seems to be displaying four stars rather than my real scor, which I'm sure you can, by now, guess anyway.I've had this now for a few weeks. The Logitech Mobile Freedom Bluetooth headset is lightweight and fits comfortably on my ear. It's not the smallest headset out there, which is a good thing, I think. Because of its size, which is still diminutive, it covers the ear nicely and provides an ample speaker.The sound quality is good, though sometimes its connection can be dicey. I don't know if this is due to the phone or the headset. There have been several times that when I put on the headset to answer a call, they are no longer paired. They were paired just a couple minutes ago and haven't been further apart than left and right pockets.Another thing that drives me crazy is that the volume always returns to the lowest setting so that each time I answer a call, it takes several seconds of turning the volume up before I can hear the caller.Operation is simple and straightforward. It doesn't have a bunch of features, so there isn't much you have to commit to memory in order to use this. What it does, for the most part, it does well. I did not want something complex and, therefore, expensive. If you just want a headset that works fairly well without a bunch of bells and whistles at an affordable price, then this may be the choice for you.Update 9/29/06: I've had mine for about three months now. I've had none of the issues mentioned by others regarding battery life or the charging cycle. There are some flaws which I find to be very annoying:1) Seems like every time I answer a call, the volume has dropped to zero and I have to adjust it upwards, which takes at least a couple seconds. This small amount of time seems like an eternity while I'm repeatedly saying "hello," because I can't hear the caller. I know I mentioned this previously, but the more I have to deal with it the angrier I become. This alone has caused me to start looking around for a different headset.2) It always manages to turn itself off or on or trigger the voice activation feature whenever I keep this in my pocket. I wish the button was located differently or recessed so that it would get depressed all the time.