[This review was collected as part of a promotion.] Product performs as expected with several quirks, according to the information in the included user's Guide. A nice feature is the timed periods with a brief pause between brushing sessions so I know when to move to another quarter of my mouth. One quirk is there are 8 periods, not the expected four. The first four periods are the same length and the first four are longer than the second four, and those are of equal length. None of this behavior is described in the Manual. Please update the included Manuals to correspond to what the instrument does.

[This review was collected as part of a promotion.] This is the second time that I have purchased this brand/model toothbrush. The first one lasted seven years! Consumer Reports recommended this particular toothbrush, and I agree with their assessment.

[This review was collected as part of a promotion.] Third Phillips i have had & would not use another brand. The automatic features make toothbrushing fun.

[This review was collected as part of a promotion.] I'm very happy with the strength of the toothbrush's movement and will purchase the same type again. It feels like the teeth are really getting clean.

Purchased replacement after 1st Sonicare battery gave out. I can't remember when I got the first Sonicare, but it has to be more than 10 years ago. Have always been pleased with my purchase.

Everyday now my teeth feel like I just had a professional dental cleaning! My Dentist actually commented how much better my gums and hard to reach teeth cleaning areas are looking.

This is my third Philips Sonicare and all three have always left my teeth dentist office clean. My dental tech tells me that I have nothing to clean off of my teeth.

using this toothbrush is the closest to feeling clean like after a dental cleanig. Works great. timer makes sure that you brush for the recommended time.

Good product but a little disappointed Sams club ran it at $40 off and before it arrived they dropped the price another $10 making it $50 off I live 45 miles away and gas is to expensive to take it back and try to get the $10 back so my loss

[This review was collected as part of a promotion.] I liked it and it did a wonderful job, but stopped working after two years. I replaced it with a 4700 and all is good.