I bought this bluetooth earpiece with my Sony Ericsson P900 a couple of years ago and it's still going strong. I do not have any problems with it and have used it extensively. It's great to have some kind of hands-free, wireless device. This one sits on my ear and is out of the way.After 2 years of use, the silicone part around the earpiece that "seals" the earpiece to your ear has come away from from the plastic. Not really a big deal, but it is breaking away from normal use. I've never dropped it or abused it in any way, so I would have expected it to last longer than this. Performance is still good though.It does sit a little precariously on my ear, it's just a light "wrap" around my ear, so if I lean over too much, there is a danger it can fall off. Care must be taken when you're wearing it. And even though it is one of the smaller wireless units, it's still heavy after wearing it for a few hours. Battery life is good and charging is easy.If buying another one, I would look for one that can sit more securely on my ear, but I would have no problems sticking with this brand.