I stayed RPR Club in January 2005. Here's the thing: they never released RPR Club APH rates for our January stay. So, I booked a water view room, and then wound up asking at the front desk if Club was available when I checked in. It was available, and it was an extra $100 a night to upgrade, so not much of a savings ($229, 239, 249?).
It's hit or miss. I don't think anyone can really predict. Good luck!