I'll be frank, the quest should be improved in one of a few ways. Currently, the quest has absolutely no loot, the XP is minimal, and the difficulty is medium / high.
It's a rather good quest beyond that, my suggestion would be to either add a few corpses with, I don't know, anti-aberrant / healing supplies? or simply just up the amount of XP to be worth the cost of the healing and risk of death.
It's good to do once per a character as it is, but it's currently not worth the danger beyond the pure RP of killing Aberrents
My experience of it was more high/very high difficulty, and it was done with a very powerful group. Extremely costly just to stay alive and the three heroes in it were extremely strong and unrewarding. Part of that can be associated with how minimal the Society reward for aberrant hearts is.
I'll look into it. It should have loot. XP probably won't go up though.