Originally Posted by AshleyB
Alanw is right. MH is a much better alternative. In any case the flight is not very long and not worth extra $$ to fly in C on KL, although probably worth it on MH (really nice lounge). I take this flight quite often from AMS and it is usually pretty full, even on the KUL-CGK sector.
KL C is 200$ vs 100$ in Y for the return ticket. So not that steep and a reasonable difference.