It's actually not terrible, but it's not Mind-blowing. It's pretty decent flavor text, about the quality of the original. It only really changes the night scenes and adds some small bonus features to daytime (like the fact that you can interact with them and have chats as another girl that corrupts them slightly). At night if you select the girl you're currently possessing you can have one of the other girls take the man's place and transformation-jutsu a cock.
It's decent but I actually think it would be nice if someone else (or the original author) went whole hog on it and re-tooled most of the dialogue through the game to explain how/why the MC is so interested in taking a woman's body for a joyride, really emphasize the possession/GB content.
