[This review was collected as part of a promotion.] I like the two speeds of the toothbrush and the amount of time that it holds a charge. The only thing I dislike is the round handle. It makes it harder to get the correct orientation when changing positions brushing. Would prefer something like a hexagon shape.
[This review was collected as part of a promotion.] New model is much easier to operate. New on off switch design is more convenient than the earlier model. Also features advancement in charging time.
[This review was collected as part of a promotion.] I have been using Sonic for 20 some years. All I have ever used in an electric toothbrush. Love the easier way to charge. Lasts longer than the old ones. It is slimmer too. Easier to grip when you have arthritis.