Recs.
Updated
Office 365 is a subscription service, Office 2019 is sold as a one-time purchase (for PC and Mac). Office Online is a free version of Office that you can use in a web browser.
Read more about the different Office versions.
Specs
Pros
Cons
Con It is Commercial tool that meets Industry Standards but lot of errors including activation, doc, etc are found on this apps
Con Loaded with bugs
Program hangs can occur with 365 and tons of high CPU thermal loading from this package to the point of requiring uninstall of this package. Word hasn't gotten any better since they refined it in the early 2000s - it's only gotten far more bloated and crash prone, not to mention the horrible GUI appearance and lack of functionality that their older, stand-alone packages once had.
Even XL (formerly, Lotus 1,2,3), was ruined and degraded to where, 101 functions ceased to function properly.
Outlook - what a debacle that turned out to be. About the only useful application in the suite turned out to be PowerPoint in daily use.