Bought this for my girlfriend's Blackberry phone and she's quite picky about these sorts of things. We replaced the plastic ear loop with some gels from a Plantronics earpiece for holding the unit in the ear instead of over the ear. She couldn't be happier. Batter life is fine and it's been working good for 6 months or more now. Am planning to buy another one or two as spares.
The Motorola Universal Bluetooth Headset H270 is a practical solution for talking hands-free. You will appreciate the snug fit and super-simple controls when you're out and about. The H270 was designed to make connecting with a Bluetooth enabled phone a snap.