Cool venue + loud ambiance + descent food + great wine list + average service = 3.
The balcony on the 31 st floor = 5
The DJ on his Mac playing music a bit too loud = -1
The tuna tartare 1, the foisgras -1, the octopus 1, the braised beef ribs with amazing polenta cubes infused with truffle 2, the gnocchi with rabbit -2, the long wait to take out order -1, pouring still water into my sparkling water -1, bringing the bill before I finished ordering -1.
Overall I have to say that at a 5 star Hotel, I expected things to be a lot more refined but still cool. If you are looking to spend $400+ at dinner for two, check out Jacobs or Rosewater for better services and ambiance.