If you can't spring for the whole spa experience and are in Palm Springs anyway, try to book a massage or one of there other services.
Just getting on the property is a real treat. When I lived in Palm Springs I must have had about 20 massages there. I always left feeling so refreshed.
The place reminds me of that old Humphrey Bogart movie, you know the one with Lauren Bacall, oh yeah, Casablanca.