Rhever a file sharing system like BitTorrent, LimeWire and KaZaA differntiates itself as free of – Virus, Ad-ware and Spywares. Rhever claims it does not use seeds like Bittorrent and is good for fast downloads.
Here are three interesting Rhever videos comparing itself with torrent giants
LimeWire vs Rhever video
BitTorrent vs Rhever video
Rhever vs KaZaA video
Be sure to check this article on Rhever from Torrent freaks.