The first contact is quite "special" compared to a conventional toothbrush, the first physical contact of the toothbrush in the mouth is pretty striking, vibration surprised tickle and radically change from classic brushing. You really feel a feeling of clean that conventional tooth brush does not.
The tooth brush is recharged via a simple touch at its base (the wire is a little short, shame ...), a full charge allows to use one week.
This toothbrush has a timer that indicates when moving to another part of the mouth (split into 4: up / down, down / right, up / left, up / right) is smart and allows children to brush their teeth for a "good" life. This model is also equipped with a pressure sensor that is used to stop the vibrations of the head if you press too hard, this can be helpful for people with very sensitive gums.
In short, try it is to adopt, I recommend it to everyone, especially to children because it is easy to make them brush their teeth as this toothbrush seems more playful than a classic.
To change heads I advise you to buy them from amazon or they are much cheaper (pack of 8 or more) than in the traditional trade.