The functionality with respect to the heating process and the service is also impeccable, the security features also.
What has failed is on the one hand the cable is very short once again and especially the internal water level indicator. The good for nothing, in my opinion. Of course, that's with a full metal case is not so easy to do as in a plastic case, but it is, there are plenty of examples. The water level should necessarily be visible from the outside.
It reached me only 3 stars, still is room for improvement.