As a very new player with fewer than 20 games, my main issues:

• Very few people on when I can play in my TZ during the week
• I queue for 1v1 and 4v4 at the same time and usually the latter is what matches first
• I'm so low level that I am concerned about waiting in queue long enough that I'm going to force a match that ends up being a waste of time for my opponent
• Standard ladder anxiety others have already mentioned