The only downside is that creating and editing documents requires a paid subscription to Microsoft 365, formerly known as Office 365.
Microsoft has also integrated the Office Lens scanner and notes that sync with Windows 10, but I don't use those features.
The app initially didn't properly support tablets, but that has since been fixed. In 2020, Microsoft released a new combined Office app that included PowerPoint, Word, and Excel in a single package. There is also extensive support for keyboard shortcuts if you regularly use a keyboard with your tablet. Sure, you might not need to edit an Excel spreadsheet on the go very often, but the apps have the same 'Ribbon' interface as the desktop equivalents. Microsoft's Office applications are some of the best examples of tablet-optimized Android apps that I've ever come across.
