1. Access from anywhere No need to VPN. Should I even say more? Just like Gmail and Wikipedia, you can access SharePoint and Office 365 from any computer with Wi-Fi and a browser. No need to mess around with VPN tokens, and passwords – you can access SharePoint from any device and any location. 2. Security OK, I am not a security expert by any means, but I laugh when a client tells me that their in-house server is safer than Microsoft’s one. I can think of a handful of companies that can match the might and technical capabilities of Microsoft. You can read more about security in SharePoint and Office 365 here . 3. Predictable costs With SharePoint Online and Office 365 you pay per user per license . So the math is pretty simple. Just multiply the number of users by the cost of your plan’s license and that is the cost you would pay. Period. No more guessing and when the server will need the replacement and anything like that. 4. You cannot beat the value No other