LibreOffice doesn't quite cut it
For home use, and lots of business uses I'm sure it's fine. When I started my own business 4 years ago I tried to use it. I had to give that up because my business involves sending lots of documents to people where they need to be in a particular format. Things like page numbering and line numbering were a real pain to do, and I got calls saying things were going wrong at their end.
Sadly it was just easier to bite the bullet and buy Word.