Well, as for the stamina stuff, you can't really expect that to be totally perfect on it's first try; but it's definitely awesome. ... Now I'm missing the dash function when I go back to Ocarina. D=
As for the motion stuff, recentering is a pain, but that's partially because it's all handled through the motion-plus... So when you go to do something that involves aiming, point the remote at the screen.

Though, one item might be more interesting if you held it as the actual item typically does.
also, for Link's movements not matching yours sometimes; are you playing in an area where there may be light interference? It doesn't make much sense why that would be a factor... But it is. It happened to me the other day. Luckily I didn't run into too many problems. =P