We tested the Oral-B BLACK 7000 several weeks with the whole family. The brushing result of BLACK 7000 has really convinced us. The teeth feel after brushing to much cleaner and smoother. We mostly use the Reinigungssmodus. In deep cleaning mode, the interdental spaces are cleaned as well, so that you can almost do without Zahseide. For children, the Sensitive mode is very good. With SmartGuide our children can very well check the cleaning progress and the cleaning intensity. The design of the 7000 BLACK is very elegant. It lies well in the hand. A bit annoying is that the brush and the charging station in White.