If this game gets mediocre reviews, I'm going to be so pissed. It deserves nothing less than a 10/10, IMHO.
Edit: that French review was terrible.
It's about an 8/10 if using the most common method of rating a game, although numbers never really do games justice. Deeply flawed games can still be amazing, technically near-perfect games can also be uninspired and dull.
I'd say when it comes to D:OS -
Enjoyable tactical turn based combat Solid non-combat gameplay Well polished aesthetics Good sense of humor Functional/easy to set up co-op, at least in my experience
Bad user interface Poor/incomplete information for character building Balance problems Some bad/overdone gimmicks in both combat and dialogue