It's very awkward to get this thing positioned in the ear, and once it's there it has that horrible Star Trek kind of look--it's big. It's a pain to pair. Sometimes I would have to go into my iPhone's bluetooth settings to get it to reconnect--one of the things that most annoys me about devices like this and why I despised and disposed of my Jawbone. But the most annoying thing about it is the lag between the time you hit the button on the side and the time you either pick up or end a call. What's with that? It has zilch noise cancellation--if you want someone to hear every breeze in your environment amplified to hurricane-force, wear one of these things. It didn't cost much, but it isn't worth much. I'm not a fan.