Guh. I tried out the Wii at Gamestop the other day while pre-ordering Vanguard (*COUGH* shameless plug), and it was a disaster.
The Twilight Princess demo? Couldn't get past the shooting range. Sure, I can flick the remote, but I can't flick, aim, and shoot all in 3 seconds. Especially since I'm an inverted player and couldn't adjust the down=down and up=up.
So I give up. Five minutes later a kid comes by and just lays WASTE to the demo. I cry, softly, and exit the store in shame.