Is it a "real" lounge yet or still the temporary thing? This is from a trip report in March:

* The concierge lounge is just a side "room" off the huge lobby bar. Its right behind the check in desk now but will be moved up to the 14th (top) floor once the lounge is finished being built up there. No one knew when, but it sounded like they were just waiting on furniture. The lounge currently has limited hours, and is only open until 9p, but the beer and wine are complimentary. Breakfast is served in the adjacent bar area with a good size buffet. I was also given drink tickets to use in the bar at any time.

I'm assuming that one would still get breakfast on the weekends if the 'lounge' was closed.

Cheers.