Miele makes really good stuff. I have their stackable W1/T1 washer/dryer. It's unbelievably good at washing or drying pretty much anything. They also supposedly last forever, even today. I'll let y'all know how true that is in 20 years LOL
Would not recommend this to anyone who can't easily test them in a showroom and even then not really... They do the actual job well, but their UX makes me angry every day.
The biggest difference more money would make is that I could have someone else deal with those issues.
Firmware is an important part of the appliance. An appliance with Frigidaire hardware and third-party firmware is counterfeit.
Maybe the same thing happened with your Miele appliances?
Nothing but good stuff to say in coming up on 10 years of use.