A club, bar and concert space with various different rooms. As the name literally means: "A Club of Different Rooms." The place has a nice atmosphere, the bar has some great drinks, and you can probably find a room that suits you best. During events, one may partake in different activities in the various rooms. Say, the game room with boardgames and video games. The stage area has these tables with screens built into them, so you can get the best view anywhere you are seated.
I always go there for the concerts!