qBittorrent has been created to represent a free, more lightweight, neater and handier alternative to the ubiquitous µTorrent. It ended up resembling µTorrent quite a lot, in fact looking like a lighter version of the popular BitTorrent client. Anyway, though it's not exactly original or innovative, its interface is straightforward and easy to use. As for the rest, qBittorrent offers no other reason for criticism. It's a powerful and feature-rich tool despite its neat and simple-to-handle interface.
I really like the fact that it hides a lot of advanced options under its hood and it comes with handy additional features such as a torrent creation tool that let you make TORRENT files with ease, or a powerful torrent search engine that enables you to find torrents with accuracy and convenience. Trackers, peers, and the torrent files can be managed thoroughly, as qBittorrent support queuing and prioritizing. Remote control through a web interface, port forwarding, RSS support, bandwidth scheduling, IP filtering or sequential downloading are also available.
The fact that, mostly thanks to the automatic port forwarding feature, this BitTorrent client achieves impressive torrent downloading speeds, limited only by your bandwidth specifications is also worth mentioning.
In conclusion, qBittorrent successfully challenges the supremacy of µTorrent and represents a great BitTorrent client. It's reliable, fast, easy-to-use, feature-rich, and best of all, open source.