I stayed in the Delfina for business and the stay was to be directly billed to the company, though I had to give them my card for incidentals. I didn't use any incidentals and checked out the next night. A week later, I found that the hotel had billed me for an additional night several days after my departure. Trying to get anyone at the hotel to deal with this problem has been a nightmare and a huge waste of time. I would strongly advise looking for a hotel that provides better service and safeguards guests' credit cards.