[This review was collected as part of a promotion.] I am very pleased so far with my 4100 Series toothbrush. It shuts off automatically at the 2-minute point (maybe they all do :)), and the battery holds a charge for a long time.
[This review was collected as part of a promotion.] I love the way it makes my teeth feel after using it. It is a much better device than the other battery powered toothbrushes I have tried.
[This review was collected as part of a promotion.] Bought the Q4100 a couple of months ago. My teeth have never been cleaner, and nothing is easier to use. Stop looking for a toothbrush to buy and get the Q4100 -- it's that good.
[This review was collected as part of a promotion.] My teeth always feel like the just cleaned feeling with this toothbrush. My gums are healthier and less plaque buildup per my dentist.
[This review was collected as part of a promotion.] The Phillips sonic toothbrush was a good choice for mez. It holds a battery charge and is ready for my daily brushings.