Luk flywheel

Helping a neighbor put a clutch in his diesel pickem truck. The clutch kit he is getting has a Luk style flywheel. Can someone kindly explain it me what, if any advantages/disadvantages it has over the oe flywheel he is replacing? The oe unit had 180k+ miles on it, the metal around one of the springs in the disc suffered some sort of fatigue failure, causing the springs to end up laying inside the pressure plate.....