After a brief charging time (90 minutes), it "paired" up immediately with my LG-VX8300 and set up directions were easy to follow.  It fits comfortably in my ear, especially with the furnished ear piece covers, and my glasses fit fine if I put them on after putting the BT over my ear.  The voice command/dialing feature worked almost flawlessly (it had to search a bit to get the name of a middle-eastern friend!).  The tone quality is very good but, as one reviewer said, you need to be careful if you're trying to adjust the volume while talking with someone because of the proximity of the volume controls to the "off" button.  I really like the ingenious setup for recharging by using a cable with a bayonet type plug for the BT and a USB connector at the other end, which enables you to then plug it into an AC, car, or other USB outlet. I've used Jabra and Motorola in the past and while they were OK, the Blue Ant is far superior in my opinion.