I had it on my MK5 and ran it for 70000 miles without any issues.
The peak torque does tend to be lower than the Revo but it is a flat profile like the original just more, wheras the revo has more of a spike at the start.
Midrange grunt is superb and acceleration in 6th is like 4th.
MPG wasn't really affected although if you push on it will be
Their technical support has always been excellent.
If you are going to order make sure you tell them if it is DSG or Manual as the maps are slightly different.
Highly recommended.