[jack_pp]

I think this is huge for new content creators that are not native speakers to get rid of the accent. Also if it enables multiple people to sound the same then you can have a YouTube channel with a larger team but only one voice

[kthartic]

I don't believe it modifies the accent. I noticed I could hear his asian accent coming through every character, so it seems to just modify the voice but not the intonation

[hiergiltdiestfu]

Agreed, at the very least it doesn't seem to change _my_ accent, just things like color, tone, pitch, etc.