The game does feel like the best FIFA yet, but like I said, it is rather short, not that i got bored in the 24 hours I had a copy to test through work (Ah the advantages of a managing a video games store), but with it being based around 51 teams and 1 tournament, I can imagine I'd be getting bored in a few weeks, or a month or so.
As for the difficulty, it is rather difficult. I was only winning like 1-0 on Semi Pro. My problem was, and that many people may find, is that on some difficulty settings you may find it too easy to stop the opposition from scoring, so you crank up the difficulty, but then you can't score at all... it's hard to find a medium.
As for free kick scoring, it's far harder to beat the keeper. I've done it once, Becks hit it with the outside of his foot, to bend it away from the keeper, cause all other angles the keeper just moved to one side and caught it too easy. And the pace on the kick is tough to get right, you do it too soft and the keeper makes and easy save, too hard and your fishing the ball from the back of the stand.
Other than a few minor issues, it's a very good game.