First off you can save about $100 and go with the Crystal G6625SCU. It's the same unit as the Dimension, but looses the Clean machine and Greats and Filters wash program, which is no big deal since you can use the Pots & Pans mode as it's mostly the same.

https://www.mieleusa.com/domestic/wish-list-1940.htm?tax=5&compare=10410100,10410180

I had a Miele since 2010 and it did clean very well, liked it more than Bosch at the time. Earlier this year the Circulation Pump Motor went out, and cost about $1000 for part & labor.

So I'm looking to replace it. At this point I'd go with the newer Miele G6625 that I mentioned above, and this Asko that has similar features:

http://www.askona.com/dishwashers/built-in/dbi664ixxlssof

I've looked at the newer Bosch 800 series and to be the racks just feel poorly made and don't glide as smooth as the Miele or Asko.

I am loving our Bosch. Extremely quiet and does wonders, even cleaning crystal. Downside: The lower racks are not well-designed, and there is really no good place to fit a cereal bowl (or similar bowl). I always have to wedge the bowls in.