Why does the Audi A4's quattro all-wheel drive system provide better handling compared to other models?

I've been looking at Audi A4s and I keep seeing mentions of the quattro all-wheel drive system. What makes it stand out and how does it improve handling?

The Audi A4's quattro all-wheel drive system uses a center differential to distribute power between the front and rear axles, allowing for better handling and traction on various road surfaces.

Compared to other all-wheel drive systems, the quattro system in the Audi A4 is able to anticipate and adjust for changing driving conditions, providing a smoother and more stable driving experience.