Use now a Philips Sonicare HX 6932nd Brushing in "a new dimension", the supersonic cleaning etc. is unusual but very thorough and pleasant. Disadvantages are: The unit has no wall mounting and occupies only 2 toothbrushes in "UV Cleaner" on. What to do with the brushes of the remaining family members. The attachment of the individual brush is very tricky! Whether and how the "UV Cleaner" toothbrush cleaning works I can not understand. The replacement of decrepit or defective batteries is not possible. The battery can only, to destroy the device are removed, the unit is no longer usable after. So you throw a still intact device in the trash, from it, we buy a new one! Unfortunately, the competitors are not insightful, well here the legislator -Umweltschutz- needs to take action. Attention: High follow-up costs, Are spare toothbrushes, offered at prices of around 6.00 / piece! One knows that yes the ink printer! Enormous differences in price, to 40%, for a new unit!