This is a simple Addon that rolls automatically on all Bind on Equip loot in groups or raids.
You can set global rules for all items and you can set special rules for specific items.
E.g. you could set it to automatically roll greed on all green items, but set a specific rule to roll need on all Mark of the Illidari.
This Addon does not alter the roll itself in any way.
It's just pressing the buttons for you.