Ok so this is the best football game for the Wii.
This version of Fifa IS better than last years. Though they did for some reason release it with many of the same bugs still intact, eg online play is very glitchy, crashes or connection drops. Then there's the commentary, Andy Gray says "that was a great sliding tackle but it looks like he will have to come off as he has injured himself" even when the other team got a free kick for an offside or some other unrelated thing. Also if you use the wii mote you can as other people have stated, pretty much score every free kick from anywhere in the oppositions half.
Personally I prefer using the classic controller or the gamecube controller for my football games. With the wii mote it's either too easy or too complicated - no in between.
That said, when the game does work and you have droned out the commentary this game is actually very good! This game is made for online play and when it works its great. One major plus that this game has over the PS3 and XBox versions is that it plays much faster and is more fluid. I think those versions went a little too real they feel clunky and slow after playing this version.