All of these testimonials make it tempting, but it seems like everyone who has their TCU tuned says it's a transformation because they don't use the paddles. I ONLY use the paddles so I feel like I wouldn't really feel any transformation. Maybe not worth the money? I'll wait until EQT has a tune available for 7 speeds and see what they're charging.
The only benefit you'd see is the ability to hold more torque, which will stop your DSG from slipping (and degrading) under heavy boost.