I too am disappointed with the lack of fairness in the points exchange. I purchased 4 weeks - 3 at Grand Ocean and 1 at Ocean Watch. At the time of purcahse the points exchange were fantastic but now as other writers have mentioned the points are of little value. I also enjoyed Marriott's renting units for me when circumstances prevented me from usingmy week- no longer Marriott rarely rents the unit and certainly not 2-3 months in advance like they used too.
Marriott to Mariott exhanges are the only flexibility I have with my units.
Renting pretty much gone, points grossly unfair- I am trying to sell my Ocean Watch. Still thinking about what to do with my 3rd week at Grande Ocean. I will keep 2 of my Grand Ocean weeks because I love to use the units each year. Resorts are great but nowhere near the flexibility I was sold.