@duke7779 Run out the numbers:
If you went it alone and contributed enough pension in a year, you probably could get AMC down to 0.5%.
If your pension grows at 6% p/a over its lifetime, 6 - 1.5 = 4.5% growth vs 5.5% growth, which is 18% less.
Does their +10% beat the loss of 18% of growth...