Sold my Jabra JX10 for this. No one complains about me sounding like I'm in a tin can now.Ear attachment is stable and comfortable; works well on either ear and is workable with eyeglasses. Volume is a little light thanks to the earpiece not being in your ear, but having adjusted my Motorola RAZR V3i bluetooth headset volume to the max, it's liveable.Buttons are easy to use. No case, but design is sturdy enough I wouldn't worry with it in my pocket.--REVISION - ONLY MERITS 3 STARS--A clear negative, though, that other users have reported is that the headset can shut off on an incoming call before you even answer it. I've done extensive testing and here's what happens: on your first incoming call after power up, the BH-900 gives you the Nokia jingle and then turns off. If you then turn the headset back on, you can answer the call and any future calls as long as the BH-900 is on--but not by sliding out the boom, only by pressing the multifunction key (marked with a phone symbol). As soon as you cycle the BH-900 power again, this pattern repeats (first incoming call turns off the headset). If you recognize this, it's workable, but inexcuseable. Once again, customers are given products which are really "betas". There are lots of RAZRs out there, the headset shouldn't have this problem or they should explicitly say "not for RAZR".As everyone says, the search for the no-annoyances Bluetooth Headset continues...