Same here, did the wife's Polo 1.4 16v (AHW 75bhp). Made almost 8bhp gain on the dyno, plot below and it just feels a lot sharper at the bottom and a cleaner rev band (more entertaining to drive). My wife wouldn't even notice a flat tyre, but she noticed the remap. So there must be something in it. People shouldn't be so quick dismiss tuning cars that only make a small gain, everything is relative remember and there a few tricks up our sleeves that allow us to help improve the dynamics of the drive including sharpening up throttle response and even raising the rev limiters.
You can hardly see it in the pic, but the figure is 82.4hp on the bottom plot for engine HP


