I work in education & I use & recommend #LibreOffice to my students:
No licence fees (great for students on a tight budget),
Forward & backward compatibility with files (so you don't lose access to your own & others' work),
UX that just lets you get on with work/study (no pop-ups, ads, nag-ware),
Really useful plugins, e.g. Zotero connector,
& just a pleasure to use! 馃