I think some look bad and some look good. My Dodge City, Lucky Strike and World Champ would look terrible with LEDS on the playing field, but my Abra, Pro-Football, Super Soccer, Domino....looked good with the LEDS under the playingfield. And on backglasses, I think most reproductions need LEDS. Seems like most backglasses I've gotten don't let the incandescent light thru like the originals.