I spoke about it.From my understanding, there are other features. You can increase the exp, essence, and item drops from encounters, (largely rendered useless because of how easy it is to already gain massive amounts). IIRC it also raises the level cap, (again mostly useless due to how easy it is to OP your character).
Hence the reason I've never bothered with it. It adds nothing I either want or need.
Status effect, code age and character height. Ready.