While i use SFTP a lot using sshfs, it is a terrible storage solution in general. If you don't know, SSH does its own flow control on top of TCP (that is, you have TCP flow control outside the SSH sleeve and SSH flow control inside it). The result is SFTP often bogs down and has dismal transfer rates. You can do much better using e.g. WebDAV and dav2fs, which lets you use https to authenticate and transfer.