I've been very happy with the Audi DSG. Absolutely no complaints. Though when I need to pass on a narrow road sometimes I use the paddle to downshift before I hit the gas just to save the car from the split second it takes to realize I'm serious about accelerating (when not in sport mode). But that's not a big difference in actual acceleration time.
I've had the same experience on my Audi 8-speed. When I want spirited driving, sport mode will tend to just be in the gear I want. Responsiveness in my car centers around turbo lag, not gear shifting.