I had one in Munich for many years
And loved it. The 70C program washed everything clean, clean clean.
A few things I noticed about mine over the years, might be useful for you.
1) The electrolytic capacitors in mine started to go in 1989. That was unusual and Miele replaced the boards for free. Still, good for you to consider - your new in the box dishwasher is now well past the service life of those caps. Easy to recap and I suggest you do, especially the line and noise and board caps.
2) I ran mine on 3-Phase, if you have it, do. Beyond words fast and hot. But, if you have the service for it, you can still run both elements.
3) "Intensive 70C" does a hot wash followed by a cold rinse followed by the really hot wash. By 2000, I was seeing the enzymes in the detergent for the final wash degrade and be nearly useless because they'd been reformulated to work in cooler water. If you are going to use that cycle, you might want to add the second detergent load after the first wash.
4) The water-softener apparatus built into the lid is fragile. Oh, and you know this already, but don't let the salt crystals lie on the stainless steel bottom. Program #8, to regenerate the water softener does not rinse any which have spilled out off.
5) Add a liter or so of water into the regeneration outlet before you start - it will have evaporated by now and has to be in there before you begin.
6) Be patient with the regeneration cycle. It can take what seems like forever to start and then even longer to finish, especially just before the end.
7) Those touchpads lock and ignore input once the program has started. At least, mine was designed that way.
8) Because of the design, the top rack wash arm has enormously more power than today's anemic trash. If you wash delicate or fragile items, load them in the upper rack as though you were loading them in the bottom of a 1950's impeller driven dishwasher.
9) Clean the damn filter after every load. One and only (and a minor one at that) thing I didn't like about this wonderful machine.
I ran mine several loads a day for 15 years and it was the best dishwasher I ever owned and I had three top of the line Mieles.
You're going to love it.