Porsche 996 Shell VPower Petrol - Does it improve the driving?

After using standard unleaded in the Porsche 911 Carrera last week I managed to get to a Shell filling station and fill up with the new V-Power Nitro+ super unleaded. So far the results are very impressive. It isn't instant as the engine needs to get used to the higher grade of fuel but after 10-15 minutes or so the engine seems much smoother at tickover in traffic and does also feel more responsive on the throttle when accelerating from lower revs.