I have just gotten into the chaos tower and I am learning about the various bad codes and stuff you get from Part-Timer's integer quests. I am trying to get a decent lv.110 shield but that is beside the point. I did his quest on the 6th floor 3 times and got bad code A each time, but the helm's I got were all garbage.
What I am wondering is... What is your personal experience with these Chaos items? Are they generally bad? How many exchanges does it take to get one with decent stats? ALSO... does upgrading the item to Requiem completely change the stats or does it just improve the stats that are already given?