I have had 2 of these toothbrushes. They do perform very well while the battery lasts. After about a year both batteries have gone bad.. lasting about 30 seconds after a 24 hr charge.. I was in the navy and am pretty quick about brushing my teeth.. 30 seconds just isnt enough. if the battery was replacable, I would give this product 5 stars.. as is.. 2 is best I can do... No.. I will not buy another one till they fix the propriatary battery problem!