If you are a big football (soccer) fan, I think you will like it a lot. I just got it, and the learning curve is VERY steep. It is so unlike any sports game I've ever played.
Offensively, the game is great, with tactical options galore. Defense is a struggle so far, but I think that takes longer to get used to.
I think the longer I play it, I will enjoy it more and more. You really have complete control over all of your players. One of my biggest frustrations with other soccer games (I've played about every version on the PC - with a focus on PES the last several years) is having stupid computer teammates. Once I completely learn the controlling system, that should not be an issue any more.
A slight complaint I do have is that shooting seems to be "dumbed down." You don't really have much control over shot placement.
All in all, it is much better than FIFA on the WII, and if you like soccer games at all, I would get it. If you're not a big soccer fan, I might skip it because I think it takes someone with a knowledge of the game to fully enjoy the options presented with the control scheme.