They is so awesome in that concert. Bar Bar Bar by Qri, Eunjung, and Jiyeon? = Amazing Lonely Christmas by Boram, Soyeon, Hyomin? = Funny
After all it was so funny to watch their dance battle.
Considering that apparently the Forbes Korea list showing them as the #2 money-making girl group of 2013 was actually true (Oniontaker seems to think it's legitimate), I'd say their re-debut and all of 2013 was a great success in terms of money, which I think is pretty important in most businesses.