Like the 2 other RI LaPlage owners have responded, in my 15 years of ownership I have never heard of an owner who found that someone else was using their unit during their week. Like others, I have asked if I could come a day earlier or stay a day later only to be told that such arrangements must be made with the other unit owner. If the TS owns the week, there is a per-night rental program that is available. The only occasion for which a unit owner contacts RI in advance is if they are renting or allowing a 3rd party to use the unit owner's week. And, unit owners can and do make private arrangements to switch units to accommodate a special request. For example, my neighbor owns two consecutive weeks in different units. We have a long standing arrangement where I stay in her owned unit so that she does not have to change units for her 2nd week of her stay..