Stayed there about 10 months ago.
Self park as much as you can.
We used the valet the first night because we'd been traveling for the better part of 20 hours and were tired.
The valet lot is a roped-off portion of the self-park lot that is down a flight of steps adjacent the main entrance.
Upon check-out, we called 20 minutes in advance to have the car brought up because of the luggage and check-out time is busy. After arriving at the valet stand, it was another 10 minutes before the car arrived. No sense of urgency was evident. No tip was given.