[This review was collected as part of a promotion.] I had used a regular Phillips Sonicare for about 8 years prior to purchasing this one. The 4000 series is good, performs like it should, charges fast, and holds the charge for about 2 weeks. The only problem I've had with it, is that every time I charge the toothbrush it goes back into adaptive mode and then it does the whole 12 uses begore being regular again. I will probably go back to a regular Sonicare and keep this one for travel.
[This review was collected as part of a promotion.] The electric toothbrush has just the right force and the 30 sec reminders are very handy. I am happy with the purchase and the price point was realistic. Many thanks.
[This review was collected as part of a promotion.] I've had a different brand electric toothbrush for a couple of years, but I did not use it consistently, mostly because it is so loud. My new Philips Sonicare 4100 replaced it, and it's a welcome change. It works great, feels good, is easy to use, and is not so loud.
[This review was collected as part of a promotion.] Glad I purchased this 4100 brush it's so good and cleans my teeth so much better than the normal style toothbrush I been using all my life! If your thinking of trying a sonic toothbrush go for it!!