I think LED bulbs are totally a personal preference. They suit some games really well, some they don't. I don't have any LED's in any of my machines yet, but I have a couple machines that will be getting the LED treatment.
mwong168 said:LEDs can breath some new life in a machine and make the inserts really pop but the problem is looking nice is one thing as long as it doesn't affect game play. One game I know that looks nice but plays horrible with LEDs is Theatre of Magic. Everyone that I warned not to install a Coin Taker LED kit regretted it afterwards because the game's GI turns off a lot and all the inserts flash or flicker all at once a lot. Mind you if you don't play in the dark then the strobbing effect is not so bad but I like to play with the lights off.