There's a massive misconception that this is the hidden enclave of the beautiful and famous. In fact, it would be extremely difficult for there to be any more sorry looking wannabees packed into such a space.
Remember all those kids in high school who so desperately wanted to be cool? They're all here. And they've all exercised their "bring a plus one" option just so they can show off to their fake-friends how extremely important they are.
A slew of old used up stick insects on one side of the room. A bunch of balding men wearing shirts with skulls on them on the other. Vapid, uninteresting conversation. No real mingling.
They have 1200 members. Therefore the place is pretty much always guaranteed to be full of a whole LOT of social rejects who will spend half their time staring at each other. The irony of a pack of thousand-plus faceless people paying money in order to feel unique is not lost on the author whatsoever.
Sure, they have decent meeting space... a stellar selection of drinks and wonderful, pretty staff... but you're more likely to find an "important person" hanging at the well-stocked bar at the Biermarket downstairs or sitting in the beautiful back room of La Merceria coffeeshop less than a block away.
If you've decided that you're going to be buying your friends, there are plenty of better places to shop.