LFTP is a shell-like command line ftp client. The main two advantages over other ftp clients are reliability and ability to perform tasks in background. It will reconnect and reget the file being transferred if the connection broke. You can start a transfer in background and continue browsing on the ftp site. It does this all in one process.
When you have started background jobs and feel you are done, you can just exit lftp and it automatically moves to nohup mode and completes the transfers. It has also such nice features as reput and mirror.