My complaint is mostly with the CHARGER. The bluetooth itself fit comfortably in my ear, with some adjusting, no problem with sound quality on either end. The only issue I have is the "unique" charger. It is a nice carrier to put in your pocket to protect your bluetooth, but if you lose it or it breaks, you're hosed. You can't charge without it, the other chargers listed with the product are attachments to the housing unit. I preferred my older Plantronics Explorer 220, because I was able to switch between my phone and the headset for my car. One less cord! It says there is an accessory for the mini usb charger, but I've yet to find it here or the Plantronic website. Hope this helps, if you don't want another cord to worry about, check the products website to see what connection it uses.