Thre are no additional benefits for wearing set/unique items, besides those they already list (as all other items do). Set/unique items need no identification - and have the phrase "unique item" or " ... set" in their title.
Thanks. I don't particularly like the answer <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />but it's good information to have. It reduces the choices a bit and some of the choices are hard. Do I want an armor boost or mana? I love it when I can get both out of an item.
Do unique or set items ever have charm slots?