You can't see it from outside, but there are several floors. It's a mixture between a café, a bar, a lounge and a restaurant. In the evening they play typically electronic lounge music. I was there on a Thursday evening sitting in the non-smoking-area (I was really surprised that you don't smell any smoke there - maybe they've change something because other reviewers complain about the smoke) inbetween of business-people in suits and tourists ordering champagne. Though there are lots and lots of waiters (mostly men) you have to wait quite a long time. Altogether it's quite okay.