Pretty good. I notice firmer shifts and less frequent shifting and it has more power off the line and when Im passing somebody. Before it had more of a lag between punching it and actually accelerating (due to drive by wire).
It was pretty much just back and forth to work, Rotterdam to Clifton Park and back all week. I got 385 miles on that tank, 24.2 gallons needed to fill it up. I paid $3.999 a gallon.