At times, this game is great fun. They have so many things right, and the flow of the game feels like real football. But all the good work is undone by a small number of things that are vital to a good football game. First, intelligent player selection. You have GOT to get this right. Whatever heuristics they are using are not sophisticated stuff. Konami, if you're reading this, try using a system that takes into account the direction the player is pulling on the stick, finds the best intercept direction for all the players near to the ball and gives a strong match weighting to the one that best matches the controller direction. This is really basic stuff.
Second, in a game where you can only control one out of eleven members of a team, the other ten have GOT to have good AI. They have to move intelligently off the ball. In particular, they MUST react quickly to a loose ball, not stand back away from it at a distance of three metres for several seconds as though it's about to explode. Again, BASIC stuff.
And another issue halfway between these...when defending, you can use one of the buttons to make a nearby teammate (not the player you're controlling) move in to pressure the opposition player with the ball. So who does it select? The player nearest the ball. Seems sensible, yes? No. It's not. It should be the player who has the best chance of making an interception. If the opponent is running at full pace, it is FAR better to have a player ten metres ahead of him move to make the tackle than a player two metres behind him.
This is half a good game, but it's an example of one where even if you get 80% of the things right, the other 20% can ruin it.