Current full fledged file managers have pretty much all integrated FTP and support for multiple file protocols (icloud etc). This is a natural evolution; to the everyday user, the protocol should be transparent, from user's perspective it's all about moving files back and forth, whatever the source/destination, transport medium or protocol. Users think less in terms of local versus remote these days. Transmit have a hard time justifying cost; when the file management capabilities are not on par with likes of Forklift, Pathfinder etc, especially the dual pane UI. I know the 5 version improved greatly, but IMO, the file management aspect is still lagging behind. Forklift is only $29 and also supports SFTP, FTP, WebDAV, Amazon S3, Backblaze B2, Google Drive, Rackspace CloudFiles, SMB, AFP, and NFS