I guess I'll have to go hang at the Rendezvous room to stare across the street and find out for myself. As for the Rendezvous Room, I found this review on yelp.
If you're looking for a new place to get some cheap drinks, throw some e-darts and jam out to some old Keith Sweat songs, it's worth a look.
I think you can also get your car detailed while you drink. The Rendezvous Room and these mansards are at Vandeventer and Clayton Road in Midtown. It's the "little" part of Clayton Road that runs behind Goodwill and then into Forest Park.