Did the cleaning with the empohlenen REKA cleaning soap (which is quite expensive) bought. The brush used to clean the mouthpiece serves its purpose perfectly. But there 5 Star. Of the rubber sponges, however, I'm not really convinced. I was able to reach all places, but is a cleaning results, especially with dried bodies, barely visible. Even if one runs through the rubber sponge several times, no stubborn deposits dissolve. Add to this that the rubber sponge has angfangen already after one use abzubröseln. In my opinion, you can set the max. Use 2 times, then the sponges are broken. For the whole set, I give 3 stars because the price is fair.