The default controls leave a lot to be desired in this game and can really dampen the experience for some. After a bit of tweaking, my controls seem to be better but there may still be room for improvement.
Post your settings here and maybe you can help someone out that is having a difficult time getting things just right.
Revised my controls a bit changing Y look to "With Dead Zone" so I can actually move the camera up/down again. :P Getting rid of the camera look for X axis seems to be what makes the biggest improvement to me.
Just to add onto this, if your controls feel a bit off, try the Sensor bar Calibration. Its under Options>>VideoOptions>>Sensor Bar Calibration. I could feel the difference after calibrating it and it plays great.