This page shows some samples of the URW Nimbus Sans L font, showing the effect of:

How good the gamma corrected versions probably depends a fair bit on how well your monitor matches the idea gamma=2.2 sRGB monitor.

Gray-scale antialiasing, black-on-white
Original font
With improved hints
With improved hints and gamma correction
Gray-scale antialiasing, white-on-black
With improved hints
With improved hints and gamma correction
subpixel antialiasing, black-on-white
Original font
With improved hints
With improved hints and gamma correction