Matchmaking in open beta right now is quite frankly horrible.
When queueing for dominion, it would often say "Game found". And after 1minute of loading it would then say that the room is full and kick me back to the main menu. I understand that the servers are slow in open beta, but logically thinking if the room was full the game should just shift me to the next available room instead of kicking me back to the main menu without doing anything.

Also, more often than not, the rooms I have joined would have 6 players with 2 bots. Logically thinking you would be expecting the team to be split 3v3 with 1 bot on each team, but reality is the game loves to split 2v4 with 2 bots on 1 team. Thats pretty unfair to the team with 2 bots, and more often than not the team with 2 players would leave within the first few minutes of the match. The game should really balance the teams, and if players left the game mid-match, other players queueing should be subbed in. It would also be nice to put a penalty on leavers.

So these are the 2 changes I feel should be implemented.