That it is secure, that I can use all my passwords in one place which makes them easier to remember (also saves time). And that you have an option between different types of keys if your computer crashes or gets stolen like some other programs do not support this functionality at all. There are also no options for importing PGP keyrings from another program than GnuPG itself so far as i know. If possible export those data into text format such as XML/JSON file then import them later by hand using gedit / nano etc.. This way they will be much more reliable because we could fix any problems ourselves without having to ask someone else to send us their private copy again! The only thing about security is that sometimes when sending messages through email attachments there might seem something weird but its probably just because of how computers handle these things - meaning nothing wrong actually happened. It's really.