Negative Positive
Title: The best.
Review: We have 3 of these, and have been pleased since the beginning (about 3 years ago). Your mouth will feel wonderful after each use (though it takes a bit of getting used to, and beginners are warned to use the included damping ring to decrease the intensity for a while). We have had 2 occasions to return one to the factory, but they were replaced under warranty with little fuss (both dead batteries). There have been subtle changes as newer models have come out. I like this latest itineration best, as its tiny green LED on the on/off switch makes an adequate navigational beacon through a dark bathroom. One word of caution: my family will not travel without these things, so while I preach 'pack light', they tote their Sonics everywhere we go. Fortunately, one charge lasts at least a week, so the charging base is only needed on extended trips.
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