Finally we bought the Rommelsbacher. The basic function, cooking 1-7 eggs, he fulfilled. The scale on the knob shows three degrees of hardness, but you have to experiment to find of personal taste, Eiergroesse and number to find depending the "right" attitude. That egg tray and cover made of thin plastic and are not precisely matched and fit on the bottom part, must accept it, all other tested manufacturers are similarly lax. Annoying is the cord storage in the soil, the winding of the entire cable does not allow lack of space, so that either the string hanging out long or the unit is not at ground level.
Remember that with our Bosch egg cooker 90s could the entire cable wicklen around the body, insert the plug into the same, measuring cup and Eierpickser were integrated into the lid, all parts fit exactly. A dream of functionality and design ...