I have the most expensive APS equipped and it says APS ready all the time yet it does not destroy incoming RPGs.
Build ID 3334720
EDIT: I just played a bit with boxer and it seems that it will destroy like 1 out of 10 rockets. Most of the time I die to RPGs with 6 charges for APS. I also just killed leo with best armor and APS with first tandem HEAT from RPG and since he was leaving spawn and I was alone around him I guess that his APS was also active (I also asked the driver who confi