Just coming in to say that I started DMM about the same time as Taikishi. I didn't start because of the break, but because others on IRC were doing so because of the break.
I will say that it took me forever to AW anything because the AW maps killed me for so long. Even now, I can't beat the Sunday orb map.
In any case, I have now quit. Not because I was overwhelmed by the game itself mind you. That said, I will agree with just about everything Taikishi has to say. DMM is brutal, but not impossible. If you were to start, get some background knowledge, do your plat/black rerolls, and do some planning. Don't focus on one thing to much, look at the broad picture. Yes, you might feel bad that not only an event unit, but a good event unit came around that you had to skip or settle at -0 1/10. Yes, CC'ing and eventually AW'ing will be thrown into mix and make everything even more complicated (orb maps no joke and raising silvers is problematic).
But the game is better for all that. There are actual senses of urgency and challenge, which beats out a lot of real games nowadays.