Hmmm, no problems with either one of our Miele dishwashers both work great, although the first one did work a little better due to it's built in water softener. 2hrs for washing dishes, no problem for me. I usually forget it is on and am in no hurry to have them washed right away either, but if I was, I would use the quick cycle which is about the same as most other dishwashers.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70