I have been sitting in matchmaking for over 3 hours at this point.
Looks like big streamers can access the game just fine, but I get spinning wheel that is occasionally punctuated with getting an error message and kicked out of the game.
The beta was like a week and a half ago, and matchmaking was crumbling under the small organized stress test. I KNEW that once the open internet hit the matchmaker the whole thing was going to implode.