I kinda like them
I currently have a 36" 6-burner all gas range that I'd like to replace someday, and was leaning towards Wolf. We had a Viking in the last house and were not impressed. My parents have two Wolf gas cookers and are very pleased with them. These new Mieles look pretty nice to me, though. I like that the Miele hob is black and not stainless, which is a chore to keep clean. Our range is 6 burners with 3 double grates. They're dishwasher safe, but too big to actually fit in the dishwasher. The Miele might have the same issue; it's hard to tell from the pics and schematics.
I'll be looking forward to reviews of these models to see if they are real contenders. If I recall, Miele's first North American rollout of built-in refrigerators had issues, so perhaps their ranges will need a generation or two to work out any bugs.