I've been sort of disapointed from time to time, but overall i actually like it.
I think the wii controls, if done correctly, can add a very good something to a game.
I also think there actually is some very good games for the wii: zelda, mario, metroid, smash, no more heroes and madworld to name some.
There's huge shitloads of bad games, or games so focused on the youngest part of the audience, that most older people find them booring, but from what i've heard the PS3 and 360 also have shitloads of bad games, it's just the way gaming is, 90% is crap, but the last 10% is good.
I think the wii will only get better once game developers get used to it, and starts making the controlls worth gold instead of just random misplaced wii-mote wanking, on just plain bad as the sword fighting in red steel.
I really prefer the point-shooting of the wii mote compared to analog sticks ofthe other consoles, though none of them compares to a mouse IMO, when it comes to FPS i would mostly ignore that whole genre if i had a PS3 or 360, cause i almost always hate it with sticks, only exception is RE4 on the GC, which was different because all the enemies were slow you stood still while shooting, so it wasn't a problem to aim that horribly slow compared to PC FPS.
Just my thoughts on the wii