Yes I am running 10.9.1 OSX
After last update I get intermittant problems when document will not save.
Its very frustrating as it means you cannot rely on pages to save your work, it comes up with the error message
saying 'document not found" and other than highlighting, copy and paste to another file such as evernote and then paste back the work is lost forever.
This is why i am on there now
Not sure how you get Apple to do anything?