Marty,
We stayed at this property over Thanksgiving, we took our best friends with us. We had a total of 4 adults and 3 kids in the unit. We had plenty of room, towels and the layout of the unit is perfect for large groups. But, I do have to tell you we had housekeeping issues. We went to 3 rooms before we found one that was clean enough for us to check in. Looking at your TS list, you may want to check the unit before you drag your luggage up to the room. The resort is really much larger then in looks from the Highway. The manager took us to the last unit himself. So, they did seem concerned about the issues. The second unit even had dirty dishes put away in the cabinet. But, other then housekeeping issues - we were happy with the unit. It may not be up to the standards of some of your other TS stays - but you should be fine. I think the RID rating by RCI is an accurate rating. The units could be Gold Crown, but they just are not quite there. But, the floor plan is great, it is nice big unit, great location and we would go back. We have also stayed at many of the resorts that you have and the Grand Beach is not in my top 10. But, it is very nice.