This game is pretty much broken.....
Controls- What can I say. The click and mash-click technique is not a good idea. Soccer is one sport where you really want WASD/ arrow controls. The space-click combo is also broken. You'll occasionally shoot the ball, but A) sometimes it won't do anything and B) there is never any reason to pass.
A.I.- There is none in this game. When you have the ball, all teammates stay still. The opponents will only move when you get close, making it easy to do the same pattern with the ball and score easily. When the ball is loose, all players either: A) scramble together away from the ball, B) zip back into place, or C) do nothing.
Ball control- Another tally down. Getting the ball is a chore; you can go over a ball for several seconds and the ball won't register that you're trying to control it. Kicking the ball works sporadically.
Another note- As soon as you lose control of the ball, the game defaults you to no player. When it does keep your player, you lose control of said player as he wonders back to his place, making you re-click a moving player in the middle of a play.
Overall: The only challenge in this game is the controls. Any time that phrase is used, it can never be a good sign.