I just downloaded and installed the trail version of crossover and installed office 2016. The install went fairly smoothly, a few error messages about not being able to fetch some installers appeared, i downloaded them manually and provided the location to crossover (this was pretty easy).
Once installed i tried opening word, it worked. I then tried signing in, it didn't work. So as per the Tips and tricks section i installed ie8. This helped and i was able to sign in.
The application was pretty clunky and slow. I was unable to browse one drive. The applications crashed regularly. After a few times i was unable to open word at all (an error message about not being able to open normal.dot).
Basically it's unusable. 1 star for trying.