It's stupidly close. There was an issue where you'd import your Facebook account, and it'd grab your Facebook name instead of your player name. Then one where you could open a god pack over and over and over (and over). So that one was a blocker.
It's at a point with few enough bugs that the designers are looking at it and thinking, "Well, why didn't we do this? And we should do this instead." So it's probably going to get some big overhauls as it gets iterated.
This is basically alpha, so things will start changing at a faster and faster pace.