I actually traded a 2012 with 2000 KM on the odometer with MT in for a 2011 with 20 KM on the odometer with M-DCT.
Just saying ...
You might say WTF ... Well wife wanted to go to one car and agreed to drive the M3 with DCT ... Then changed her mind ... What can I say ... Woman
As for more or less pull ... I found no difference except smoother shifting