I think the answer is probably directly related to the number and type of requests made.
For instance, if someone requests a specific room number, chances are they will not get it...but their "request" would NOT have been granted.
In over 30 trips to OKW, I have always gotten my most important request (non-smoking) except for one time...and it was my choice to accept a "smoking optional" room, as we had arrived at 8:30am after driving all night and wanted "a room" rather than waiting until 4pm for a non-smoking unit. Location requsts have been "hit or miss", bt realy, at least at OKW, one room is pretty much like any other...with only a couple buildings that have less than stellar views from the balcony.