It depends on which staff member is running the lounge that evening.

I'm fairly certain I know who the server was when you stayed there - if it's her then she's v friendly and always offering you top-ups, and things can run on well past the intended closing time. The last time I was there (22JUN) it was someone else - and she didn't wait a single minute past the allotted time before efficiently removing all the drinks. She also failed to remind guests that happy hour was due to finish, but she's new, so I guess she's still learning the ropes.