Once Microsoft Office changed their strategy to a monthly/yearly subscription basis, I have been using Google Docs for a very long time. Except for the documents you need to keep track of the track updates or comments, I don't really have any issues. In that situation, I'll use the complimentary online word processor Dropbox Paper. It is useful for in-the-moment collaboration. I'll be converting PDFs using Adobe Acrobat. Also, it is really free to use .