Exposure and Contrast Choices in C1Pro

I've been using C1Pro for quite a while now, however would still love an expanded and clear explanation of the various exposure and contrast control adjustments.

There are the sliders for exposure and contrast, there is curves adjustment, there is levels adjustment, as well as auto adjustments.
I know how to use all. The question is which works best in particular situations?

My experience: I find the sliders work well generally. Levels adjustment is helpful to localize the area affected into shadow, mid, and highilight regions. Curves is good for emphasizing exposure to a specific point on the curve.

Any input appreciated.