B9 Allroad, rear sway bar?

Hi all! I recently picked up a 2017 A4 Allroad in the USA, ~70k miles. Did anybody install a rear sway bar in their B9 Allroads? If so, would love to hear your experiences. Basically, I don't wanna sacrifice straight line comfort, and don't want to lower the car. I have the adaptive suspension, and typically sit in Auto mode. Dynamic is a bit harsh sometimes. However, I do want a little bit more tightness and less body roll when turning.

It sounds like a rear sway bar is a great way to tighten the car while turning, without compromising ride quality much.