Product review (2 stars): Not easy
I have now had my Miele cooktop for over a year.  I needed something this large to fit in my brick so we didn't have to completely rebuild our brick wall.  We have 3 lights in this nook.  2 you can aim and 1 just points down.  Plus we have pot lights in the kitchen and a very bright island light and many other individual lights.  This cooktop is SO sensitive.  I have called the help desk and they tell me that my lighting must not be correct.  I have tried so many different combinations.  You have to clean the buttons every time to get them to work.  If a speck of dust is on the surface it will either not turn on or it will start screaming FAULT.  I have had many guest come to my house who can't turn the stove on.  There were no other options for me since I didn't have gas and I needed this size.  The Miele customer support was no help.  They just kept telling me that this is a great product.  I can always eventually get it to work, but plan on using different methods depending where the sun is located outside and where the shadows are and polishing the buttons to get the product to turn on.  Plus my large burner in the front left if you turn it on medium it barely gets warm.  I can still put my hand on the burner and hold it down if it is on 5-7 (out of 12).