The best thing about this program is that it's easy for me, as an amateur user of encryption programs like TrueCrypt or PGP/GPG etc., but I need something simple so everyone in my organization will be able use them easily also! It has never crashed once since we set up our servers; everything else seems very reliable too (I don't have any complaints).
If there was one feature not included yet which would make things better- maybe integration into Microsoft Outlook? Maybe some kind if auto updating function where new features are added regularly without needing additional downloads from time to again? We're using encrypting emails because sometimes certain email clients break down when receiving messages sent through various internet services such as Facebook Messenger & Slack Chat.