This is a useful feature, as a general guideline, but I think it needs some tweaking. Recently it said my AO was best and suggested leveling AO very high also, with my CC next, also suggesting leveling CC very high. Having raised the AO one level, it now thinks CC needs to be raised many levels as my only reasonable choice (AO points are not any where near now.) That seems wrong.
It also seems this is comparing the ROI from EITHER leveling CC or AO as compared with the much harder problem to compute of BOTH leveling CC and AO togther. That is, does it make more sense to raise CC or raise AO or alternate between the two?
I have not performed my own calculations, yet. I am noting though, that there was a big change in recommendations after completing a single level.