JUST finished it, and it's easily one of the most entertaining games this year. Only parts I didn't like that much were a couple of the driving-stages - the rest is gold! Really intense and exciting, and all the various parts mesh together surprisingly well. It's one of the best-looking Wii-games out there - some of the graphical effects are mindblowing, and there are lots of excellent set-pieces. You really get a feeling of being in areas beset by natural disasters. Sound-effects like gunshots, footsteps and so on could be clearer, but apart from that it sounds good.
Got tons of bonuses after finishing, but it seems like there are many, many more. Have anyone cleared the shooting ranges, by the way? They're very, very hard. And one of them is very, very cool