I adore #LibreOffice, and is my recommendation to everyone. I've installed it thousands of times (intranet packaging), and run workshops on it.
But I am not sure I need it installed. I never use it, and that is for a really great reason: LibreOffice held my hand while I developed as a person, grew confident in my skills, and am now able to ask folks to resend me data in an appropriate format.
So long LibreOffice, and thanks for all the fish!