I have been there twice. Nice, but very expensive. They give you a room key/credit card at check in, and many of the bars/restaurants in the place will not take cash, only the house credit card. I think that is to discourage "outsiders" from jamming the place. You can also use the card in the hotel shops. When I went, I basically only used cash to gamble and charged the rest. I was there for about four days both times, and I think my wife and I owed an additional $2,000 each time.