I have used cointaker and never had an issue with dead bulbs etc. Recently bought the insert kit for my metallica pro. I didnt like some of the color choices, but it was a good starting point. The documentation provided was through and easy to follow. So i followed up with another purchase with my tweaks and had a blast last weekend tinkering with what is best.

Biggest misses for my personal taste in the met insert kit are
-purple for cross inserts
-blue for sparky feet inserts
-fast color changers for big sparky inserts in lanes, they flash on/off too much so never really light up

I put the bright white leds in the inserts in the lanes for crosses and sparky, but they are too "cool" and wash out the artwork on the playfield. So i ordered some warm white and will play with those.