The best part about using this app is that it's secure, so no worries of people stealing or leaking confidential information! It requires an internet connection which isn't always available in some areas where I work (remotely), but luckily there are options like Google Drive if you have access via wifi when needed as well. There aren’t any downsides at all; everything has been great thus far - easy-to use interface makes sending documents very simple by just clicking'send' rather than having multiple steps/options before doing anything!!