It's very easy to use. The program has many features for converting Eudora files into other formats. I am able to convert my old Eudora files into other formats like MS Outlook format, Pdf, and CSV. I don't think there are any downsides to this software. If you want to convert your Eudora email messages into other formats then this software is definitely for you! So far everything works great. I have not found anything else that I disliked about this software. This program does what it says it will do - convert Eudora emails into other formats. This allows me to view all of my past Eudora emails in one place.