I like that you can choose what fields are imported into your new pst file from an existing mbox folder or even just select all folders if there's no specific ones selected already! This program works well but sometimes takes longer than expected when importing large amounts/size files - so be patient while waiting through these steps as they do take time depending upon how much mail needs converting at once!! If anyone wants their old emails converted back after migrating them over then use quick migrator instead because we have had issues where some messages were not being transferred correctly due too size limitation errors within our server space limitations.