Ghoul Brain Eating

[Bandii]

In certain versions of the ghoul species I've read about, particularly Pagan Publishing's Delta Green, the ghouls seem to have the ability to gain the memories of the brains they eat as well as fragments of the personality and skills; I was planning to work this up as a combination of the following advantages/disadvantages:

Racial Memory (Only the memories of the brains you've eaten)
Voices (Fragmentary personality shards of brains you have eaten)
Nightmares (Snapshots of the lives of the brains you have eaten)

This seems to be the sort of power that would really mess somebody up thanks to the remnant personalities, and not being an exact science would result in all sorts of problems and side effects from trying to sort all the voices out.

Does this sound appropriate/feasible? Am I missing some obvious other advantage or disadvantage?

Comments desirable and welcome.

-Mike