So far, still good...
Before I saw your reply, Cimbi, I got together some old work clothes with nasty stains (brown veggie stain from taro plants in the pond, nearly a colorfast dye), and am running a 170 cotton wash with max spin (1600 rpm). Total time something like 156 minutes, might have to stop it as I'm going to go look at the other Miele soon. But it's washing just fine.
Used 1.75 oz of a Sears HE/STPP mix. At first in cold water, no suds. Now, as the glass has gotten too hot to touch for long, it's sudsing a bit more than I'd like, but still ok.
The machine is louder than the Neptune, no surprise there I suppose. The motor emits a low buzz as it tumbles, but doesn't seem to be struggling at all. There's about 120 minutes left to the wash, as this point, still hasn't drained for the first rinse.
I have to say it's a pretty cool machine. Not sure if I'd put it in the main house just yet - the laundry closet is within hearing distance of the bedrooms and all. On the other hand, I'm tired of all the thunking tha the Neptune does when it tries to balance a heavy load, and the Neptune pump is quite loud as well. Six of one, 1/20th of a gross.
The washer was so clean that I'm not to worried about muck and such. And this first load has lots of STPP and the clothes are quite old anyway.
Can I stand to have two of these things? Think so... lol...