But moving on, we've had several clients where we've tried to help them save money by using LibreOffice. The best I can say is that some of them 'put up with it'. Every single end user has complained about documents either not formatting correctly, or when they send them to MS Office-using recipients, that they can't open documents properly (if at all). Our clients have tried, and are happy to pay a sub to Microsoft rather than struggle with the likes of LibreOffice.
Unfortunately that pretty much describes my experience with directing folks to the free-office route. First is the learning curve since most were schooled on MS Office when they were introduced to personal computers. The largest obstacle is always the interchanging of documents with MS Office users. Eventually they end up paying the Redmond tax