The toothbrush makes a very powerful result. After first use, you feel that the teeth are smoother and cleaner than a manual brush. It also feels a decrease in the pie. Most: - Effectiveness of the brush - Timer, which allows you to change brushing quarter every 30s. - Beep when you press the brush too - Time saving, because one brush all the teeth in 2 minutes - Other Oral B brushes fit over (for me sensitiv brushes) Cons: - The yarn is a little short, (91cm plug included) I have to recharge outside the bathroom as my high intake in the bathroom is too high in relation to the length - The charging time is approximately 22h long enough for 7-8 days of use at 2 brushings per day - Lacks a second gear for people who have sensitive teeth And if we're a family, support for multiple brushes would be welcome. My 3 weeks of use are very satisfactory, I am delighted the electric brush and effectiveness.