I inquired about Instant Rewards at check in at the Dolphin in Dec. 2003 after being told to do so by SPG phone rep. 1500 starpoints translates to 20.00 towards meals, massages, etc.
When checking in, the desk clerk didn't know, had to check with someone. She returned saying they didn't offer the program toward dining but I could use the points to reduce my room bill. I filled out a small form and she calculated the points (16,500) into cash (220.00) and credited that to our bill. Hope this info helps...
P.S. I've also tried to upgrade to a balcony room using points but it has never been available 5 days out or at checkin.
