It seemed to be one of the most unique and 'mature' parts of the game. I remember playing the game when I was 9 or 10, and some of the conversation in sector 7 and wall market I didn't quite understand until I played it when I got older, the gentlemen's club, the random guy saying "you have a nice heifer there, you should take her to the don and make a mint". I was like, holy crap! this is really adult! And I liked an rpg addressing some more adult things, it really gave the environment an oppressive feel to it which was very effective. But as soon as you leave midgar, it feels like a typical rpg again, which don't get me wrong, is a wonderful story with well written characters and great environments. I feel the midgar section was certainly the most unique and memorable part of the story.