My wife enjoyed her massage and facial (birthday present) when we were there in October. They were offering several specials at the time. Be sure to use your platinum privelege for complimentary access to the fitness center, quiet pool, and locker/steam room facilities at the spa. Everything was very relaxing and a nice oasis from the more crowded resort pools.
You might also want to consider purchasing a dinner for 2 to use at the Tuscany restaurant. We had a fantastic dining experience for $109 that would have cost well over $150 had we paid regular prices. There is also a Roy's onsite. Have a great trip.
Be sure to check out the following website https://www.cgmarketingsystems.com/onlineshop/index.asp?id=3679&courseid=974 it provides a discount if purchasing 3 to 5 base spa treatments or rounds of golf.
Heads up! According to Bloomberg.com, the JW Marriott Desert Ridge is among several luxury hotels seized at foreclosure auction this past Tuesday, February 1st. What impact the financial problems will have on your upcoming stay merit checking.