c248316c_rom_a_SharePoint_Administrator__Notes
[Action] Import Documents [Alternatives] Metalogix Content Matrix is an commercial alternative DocAve File System Migrator is a commercial alternative Vyapin Document Import Kit is a commercial alternative SharePoint 2010 Bulk Uploader is a CodePlex alternative [Notes] 
With this feature, Sushi allows you to import a directory tree into SharePoint. It’ll remove illegal characters for you too. This usability of this feature is determined by how you approach metadata. If you use the term store or columns instead of folders, than this may not be as useful
Steve´s SharePoint Space | Another SharePoint blog, from a SharePoint Administrator
Notes