Maybe during the day or at dusk this place is a location not to be missed. At 10:30 pm at night it wasn't so great. All of the railings on the outer deck were full of old wine glasses and spit out lemons and it was disgusting. The view over Grant Park is fine but really at night all you can see are lights.
Highly recommend you come when you can see the different buildings in Grant Park and on the Lakeshore and enjoy the view of the lake itself.
We also did not order any food so we cannot make any comments on that aspect.