Aside from a decent mail and calendar product, docs, sheets and slides are great cloud tools for collaborating. You can comment, share, track changes, and view versions for docs and slides. There are many templates available for slides available for free on the web. And sheets is just as capable as Excel, if a little clunky. Review collected by and hosted on G2.com.

The one product I use a lot but wish it was a bit more intuitive is Sheets. It definitely performs okay and has the same functionality as Excel, but there are some things in the functions I wish were more intuitive. Errors are really hard to debug sometimes. Review collected by and hosted on G2.com.