"Adaptive Drive and Rear Air Suspension" Make a difference? What about Comfort Seats?

[autoque]

Can you actually feel the benefit of the Adaptive Drive and Rear Air suspension?

I'm wondering if they really do increase the comfort and cornering abilities. Because I read someone's comment that Adaptive Drive feels almost same as the standard suspension.

And what's the "Self-leveling Rear Air Suspension" for? Is it purely for comfort?

And one more question. About Comfort Seats... are they softer than the standard seats? Is that why they are called Comfort Seats?

Thank you.