For a week? Princeton club. I'm not sure if Gold's is still around, but that place was insane. It was more of a nightclub atmosphere where the hotties hung out, not a hardcore gym at all. I haven't lived in Madison for a few years, but when I did... Princeton Club was the best by far. The newer building off of the beltline (the west side club) looks amazing, but the east side facility is good as well.