With Costas near by, I would rather go there.
However, out of all the restaurants at Oak Brook Mall, this is one I really like.
As with all the restaurants at Oak Brook, you really need to have a reservation, and even then you sometimes have to wait.
Papagus has a good selection, and the food is always very good.
What I don't like is how busy is it. I don't mind crowded restaurants, but for whatever the reason, at this place I really felt like I was eating in a crowd.
It is a bit pricey.