I have CrossOver 9.1 and the only glaringly obvious issue with Office 2007 is the Document Properties. It claims "Loading..." but nothing happens save for the appearance of a dropdown with an 'i' (information?) icon that reveals "Advanced Properties". The Advanced Properties does work and reveals the properties I would expect (but in the "old-style" dialog box). I've never used Office 2007 outside of CrossOver, so I don't know if I'm missing anything. The Advanced Properties allows editing of the author, subject, title, and other fields as I would expect.
Any thoughts would be appreciated!