this review title is: i counted the days i was without it and the content is: my original sonicare died after about years my wife spent bucks on it and needless to say i was not happy to see it go you would think a toothbrush would last pretty much forever anyway i replaced it with this much cheaper model and am very pleased so far in addition to being a lot less expensive it has a much simplified design which should last longer and has a user replaceable batteryon the negative side it seems to chew through batteries in fact i actually reported the first one amazon shipped as defective as it stopped working after days turns out the batteries i swapped were dead too and there was nothing wrong with the toothbrush after all my bad the fresh batteries i installed only lasted maybe weeks or so i am going to use rechargeables from now on but just be forewarned that this thing gobbles batteriesbut in terms of the operation of the toothbrush i love it in the short time i had to use a regular toothbrush waiting for this to arrive i felt like i had trench mouth no matter how long or how vigorously i would brush my teeth just never felt clean and by if felt like i had not brushed in days the commercial is a cliche but it is true sonicare makes you feel like you just walked out of the dentist office.there are other information for this review, one is this reviewer did purchase it and the other is 1 people think this review is helpful.