I never thought I'd be saying this....
Except the 800-lb Gorilla gives away Office Online:
https://products.office.com/en-us/free-office-online-for-the-web
And free E-mail:
https://outlook.live.com/owa/
If you buy Office you get 1TB of OneDrive included.
The place I work went from Exchange/Outlook to Gmail. It sucks. The usability is horrible, the functionality is not that great and it's really not geared for large volumes of e-mail (no folders, only tags). It's not just me but a common complaint from lots of us of all age groups.
Google Docs are good for basic editing but they still need to work on more complex documents. I'd much rather use Office Online.