How does the Audi A8 handle adaptive cruise control during heavy traffic?

I've heard that the Audi A8 has adaptive cruise control feature to help with heavy traffic, but I'm not sure how it works. Can someone explain the specifics of how it adjusts the speed?

The Audi A8's adaptive cruise control uses a radar and camera system to detect the speed and distance of the car in front of you. It will automatically adjust your speed to maintain a safe distance and can even bring the car to a complete stop if needed.

I've found that the Audi A8's adaptive cruise control is really helpful in stop-and-go traffic. It takes the stress off constantly braking and accelerating, and keeps a steady pace for a more comfortable drive.