I've been waiting for this song to drop for a while. Sadly, I was bedridden with COVID on 9/12, so I wasn't able to do an AP on the day it came out, but I did manage one before the weekend.
Gehenna is an excellent song, and as is the case with many PRSK covers, I think the version of it in the game is the best version of the song.
Now I just have to wait until Hitoyama's first song makes it into the game next month...