[This review was collected as part of a promotion.] Although this product is working fine, in exactly 2 years it will not work properly. I have purchased all models and it will not matter - they all stop functioning well after 2 years. So, why bother to spend more money on the expensive model?? Talk about planned obsolescence! Same on Phillips.

[This review was collected as part of a promotion.] What I like is that it works well. What I dislike is that there are no replacement part numbers listed anywhere on the box, inside the instructions, or on the website. I'm looking for; replacement toothbrush heads, along with batteries.

[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.] 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 liked it and it did a wonderful job, but stopped working after two years. I replaced it with a 4700 and all is good.

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 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.

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.

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.

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.