From what I understand, you can give them your rewards card at the desk for incidentals, but you don't get points for the room. You got a GREAT price! We stayed at the Westin last summer, with a room through PRICELINE. The front desk was very nice and gave us a Space Needle view upon request. Valet parking is $38 per 24 hour period. There is a parking garage just north of the Westin that is connected by skywalk. It was very convenient and only $18 for the same time period, with in and out privileges. The doorman of the Westin told us about it.