When trying to join a quick game about 50% of the time i'm getting an error saying the lobby is already full(or something of this sort). We can all probably expect this kind of problems to exist in the full release, but it would be far better if the game has shown this error in a message in a corner and automatically started a new search for another game. Few times i went to grab a drink only to come back to this error message. Having to restart the search manually gets really annoying after some time and we don't really need to know about it, unless we're trying to join a custom game.
Also just before the game starts, in the VS screen the same heroes play the same animation which looks weird expecially when they're standing next to each other. Maybe offsetting those animations would make it look better, but its just a little thing inside of a great game.