It had been over 15 years that I had not used an electric toothbrush. What progress since that time! It is certainly a little brutal at first (in my memory, it was less so), but what does that cleans well in only 2 short minutes! Full of programmable functions are not used much (and are used in part to justify the price a little high), but in the end I'm very happy. I'll probably have to change less when the brushes (which seem absolutely overpriced).
In short, it's very good, but expensive (hence the star less).