I leave mine on the green "city" setting for urban driving. Have just returned from my 7.5 GTI's first major country trip and found the orange "sport" setting ideal for country roads, where the instant response could be enjoyed free of stop/start motoring. I find the fine tuning + and - buttons have little effect on each major setting (green, orange, red). I tend to shuffle between the major settings. But IMO the pedal box completely transforms the car. To the extent where I think I would be driving something else if it weren't for it.