I also bought 4 hafele Nagold items together 4 years ago. The hob is constantly giving problems, ignition, low flame, lousy burners that are not aligned.
Now the built-in microwave PCB had to be replaced in 4 years which cost a bomb. And the inside of the door has rusted in multiple places (one part has a 1/2 inch hole) which has now caused the glass to steam.. so I can’t see what’s inside. They want me to pay for a new door which again costs a bomb. And they say this happened due to improper handling ??Ridiculous. The technician tells me he’s never seen anything like this in his career.
Apart from the looks ... there’s nothing good about their products and the service is awful. Have to constantly call them for service.