Got my 1.5 ACT Polo the end of may, drove till now 12.000 with an average fuelconsumption of 1:16,5.
During my holiday I drove 3.443 km. with an average fuelconsumption of 1:18,3 even with high speed included like 170-180 km./h.
And yes, ACT does its work: till about 130 km./h this engine runs on 2 cilinders as it does in the city.