Awesome port. They nailed the control scheme perfectly. Basically you control all movement and looking with the stick, and the Wiimote IR sensor is solely for aiming on the screen. If you're in aiming mode, the stick controls where you're looking, and the IR sensor moves your crosshair within the area you're currently viewing. It works very well, way better than how Red Steel tried to do it. Everything else about the game is pretty much the same. There are some gesture based controls thrown in, like in the cutscene events or to escape the grasp of an enemy. Gestures also control reloading and knife attacks, but you can also do these with button combinations if you'd prefer.
If you've never played RE4 and have a Wii, get it now. If you've played the game before, you may still want to try it since the Wii controls make it so much better (you can use the GC or classic controllers too, but I don't know why you'd want to). Best part I think is that it's only $30, and it has all of the things present in every version of the game (the superior graphics of the Gamecube version and the extra game modes included with the PS2 version).
If you've never played RE4 and have a Wii, get it now. If you've played the game before, you may still want to try it since the Wii controls make it so much better (you can use the GC or classic controllers too, but I don't know why you'd want to). Best part I think is that it's only $30, and it has all of the things present in every version of the game (the superior graphics of the Gamecube version and the extra game modes included with the PS2 version).