Quoted from jamieflowers:Solid upgrade at a fair price. worthwhile upgrade on keeper games
I agree. I have Invisiglass on 10 of my games. Invisiglass on Twilight Zone is great, especially with a standard glare deflector to block the DMD glare. The product appreciably improves the appearance of woodrail games as well.
In fact, Invisiglass eliminates so much glare that you can flash-photograph a playfield, while illuminated, and actually see the details of the art. Try doing that with standard glass.