It's amazingly responsive. Nintendo doesn't invest in things until they can pull it off well and cheaply. Are you playing around other fluorescent lights? Don't have the Wiimote close enough? Not facing the right direction?
you're the only one with an issue there, i never had a problem with my wii remote in any game except wario ware (just a couple of microgames) and monkey ball (just the dozens of microgames)
but well i liked moving right to left in sonic and in racing games with the wii, so i think i will enjoy it even more with nights
maybe you just have vrappy coordination cuz the wiimote is about as good as yur ever gonna get. Ive never heard someone say it was unresponsive.... until now