Other than the user GK having mental lapses, I've never had any problems with the gameplay on a regular basis. Now have there been matches that were 5-2, 6-3? Yes. But I would say I've only had 1 out of every 7 or 8 like that. Is there occasionally a high number of shots? Yes. But it's not that terrible.
The bottom line is that this gameplay does tend to make you think and react more. For instance, you can't lay 3 yards off a striker and wait for him to make a move. You have to close him down, or he's going to have a wonder strike.
Overall, I think with 10 min halves, at WC, it's a pretty realistic feeling game. The shot stats get out of control sometimes, but the scores for the most part stay pretty reasonable, provided that you close guys down and put them under pressure. Otherwise, you're going to see lots of 20-25 yard strikes.