I like how easy it was to use; It made my life easier in regards to being able to communicate with coworkers without worry of any type or kind! Nothing really at this point because we haven't used it for long enough but i'm sure there will be some things as time goes by.
If you are looking into encryption software/systems then definitely give it try before going forward using anything else out their! We needed something simple yet effective when communicating over email about projects etc so they could not see what exactly our conversations were talking about - hence why we decided upon kaymaraSecure calls & chats system which has been working wonders!!