Writer has all the features you need from a modern, full-featured word processing or desktop publishing tool. It's simple enough for a quick memo, but powerful enough to create complete books with contents, diagrams, indexes, etc. You're free to concentrate on your message, while Writer will make it look great.
- Free, multiple platform, and probably the richest set of functionality, other than Microsoft Office Word. Word improved recently for the Mac, but is still not as good as on Windows, but LibreOffice is pretty much the same everywhere. Google Docs and IBM Docs are probably closest, otherwise, and have web forms. Apache OpenOffice seems to be losing momentum, would be nice if the code bases would merge, they'd focus on a combined effort.
- It is cross platform which is very useful when you need to edit a document in either windows, gnu/linux, and mac. Microsoft Office is not able to run on gnu/linux for now.
- If you do not need some very rare functions, LibreOffice Writer is better and totally libre alternative!