This is my first use of an electric toothbrush and the result is very positive. There actually has a big difference with a conventional brush, both visually and mouthfeel. I therefore recommend the use of such a brush. The price may put off some, but brushes thereafter are affordable. In our case, we actually use a couple where each has its own brush. Why 4 stars and not 5? Because of the excessively long charging time (22h). After a full charge, leave it plugged time every day to wash is not enough (switch cuts light but also the course of the bathroom). To improve for the next model.