macOS Sierra syncs the desktop and documents folders across all your Macs and makes the files available in the iOS iCloud Drive app as well. It's really handy

macOS Sierra syncs the desktop and documents folders across all your Macs and makes the files available in the iOS iCloud Drive app as well. It's really handy - I've pretty much stopped using Dropbox, except to share files with people on other platforms. With a few (and lessening) limitations, iCloud is becoming the general user-accessible filesystem that iOS has lacked since the beginning. All that's needed now is a download manager in safari.