We stopped in after 1 pm on a Saturday for a drink and some appetizers. The main dining room on the ground floor had a large table with a bunch of little kids and their handlers at it, so we headed upstairs to the rooftop deck. Even after 1, the place was hopping. Plenty of servers to keep the crowd well lubricated and fed.
The staff was very attentive to find us a place in the shade. We ordered a Speakeasy Ale, the Berry Mojito, an order of the blood orange wings and the tavern chips. The wings were very good, I think if I ever came back with a group I would recommend two orders. The chips were meh, not something I haven't had before. I doctored at home them to eat later. The Ale was good and so was the Mojito. I agree with the other reviews who say that the prices could be better for what it is.
It was pleasant enough in the shade and it was high enough up that the non-stop heavy traffic on the main street could barely be heard. A head's up, Waunakee is definitely a suburb, so if you don't want to hear the non-stop loud piping of little ones all through your meal, you might want to avoid the place.