The biggest issue with M+

Communication is key.

Playing assumption games where you can have specific wishes is uneccessary.

A good game adapts to its player-base. Not its player-base to the game.

And this affects good players as well. Because there is nothing worse in a multiplayer game mode than to have no people to play it with.

On a Saturday at prime time there were only 17 +12s posted. Its ridiculously low. In contrast to the 50 or more (maxed out LFG list) +11s posted. All those +11 players stuck in that key level are players not with me on a +12. And hence, I cant play.