We have this fully electronically controlled instantaneous water heater from Stiebel Eltron now 6 weeks in use. What can I say, the whole family is very happy. We have set it to 18KW, there is always enough water from the shower, and thanks to the continuously variable temperature control, we can only run the warm water. If desired, the temperature can be adjusted easily and conveniently from the remote control, very convenient! The water comes out constantly in the set temperature, whether even the hand basin or whatever is used, the temperature remains constant. Now we can only hope that this equipment will stay with us long.