Yes, it is. Because Sonicare cleans differently, it can feel strange to new users. That's why all models include Easy-start, a feature which slowly introduces the power of the Sonicare toothbrush over a length of time. Also, you do not need to apply as much pressure when using a Sonicare as you do with a manual toothbrush. In a short time, brushing with a Sonicare will feel completely normal.