Not us.
Our advisor, and person who initially sold to us in 2007, said that plenty of rooms would be open for last minute stays. We specifically said that we don't book that far in advance (FWIW, my ex at the time, who was my husband, is a very last minute planner- I plan well in advance, but not always at 11 months and prefer to plan 2-4 months ahead). Meanwhile that salesperson closed the deal with us and magically 'disappeared' and ever since, I've experienced the 'hunt and score' thrills of booking
DVC rooms. Mostly successful, I might add, but always stressful.