Deluge is a bittorrent client for Linux written in Python and GTK+. It uses libtorrent as a backend, and aims to bring a full-featured torrent client to Linux desktops.
deluge-torrent, easy to use
open source unlike utorrent and works faster than utorrent. Then why use utorrent?
This program is great. It's the utorrent of the future. Using de WebUI you can install it on any Linux server, it's also the most user-friendly program. (You get all and only the things you need.)