BitTorrent

BitTorrent is a powerful peer-to-peer client for sharing data. It has a modern look, and a simple-to-use menu that grants quick access to all of the features.

This feature-rich application is used massively around the world, as it provides the users with stable versions and an ever-evolving client for P2P connections. It provides valuable information about each and every file that is being downloaded or uploaded (seeded). The client comes with a nice GUI and is available for various platforms. It is available in multiple languages, but the language pack must be downloaded separately from the developer's site.

The application is highly customizable, as opening the preference menu will allow users to make general changes, edit the specifications for folders used, bandwidth allocation, the use of Internet ports, schedule their downloads or alter the remote settings.

In conclusion, you should give BitTorrent a try; it is free, it has high applicability as it is developed for multiple platforms, it is very reliable and comes with updates and fixes regularly.