I can confirm that the 3v3 was working very well yesterday. Its not perfect, put me on the opposite team from my 2 clan mates once but it worked well about 4 other times. The 1v1 is very much improved also. I can now go in back to back 1v1 games without having to restart game and/or possibly rebooting my pc.

In 2v2 and 3v3 battles when opponent(s) quit they give you the win. So in this respect its actually better than 1v1.