Very happy with the electric toothbrush of the same brand, I bought this Oxyjet thinking he would bring me the same benefits as my old Waterpik twenty years. In the first test, I thought it was so clogged the jet was low. The legal position jet is not even powerful enough to remove the remains of food stuck between some teeth. When the massage function, as do a mouthwash, it will do much effect with less noise. I very much regret not having re-shipped immediately. But the best is still not buying it.