How does the Active Lane Keeping system work in the BMW M9?

I recently purchased a BMW M9 and was wondering about the Active Lane Keeping system. How does it function and what are its limitations? Is it worth using or should I rely on my own driving skills?

The Active Lane Keeping system uses cameras to detect lane markings and keep the vehicle within its lane. It provides gentle steering inputs to keep the car centered, but it also has limitations. For example, it may not function well in bad weather or on roads without clearly marked lanes.