I’ve had great trouble since last saturday (6h of february).
I’m a EU player and I’m having trouble finding games during the day, it may take hours to find a single match.
After midnight the game searches seem to be smoother for some reason.
Lots of people have been reporting this issue, myself included. I haven’t been able to find matches at all in playlists like BTB unless I party up with some of my American friends. This was never a problem before the changes were made to the servers recently.