eMule stands out from most of its rival P2P clients in the fact that it is open source. The great thing about this is that you’re free of pesky spyware and adware, leaving you free to get on with your downloading in peace. What’s more, eMule doesn’t rely on one central server like many older clients. By using a multitude of different servers, eMule's network is virtually impossible to shut down, and proves very robust and secure.

A simple user interface goes a long way to making eMule a cinch to use. This doesn’t mean it lacks depth though, and its features are some of the most advanced we’ve seen in a P2P client. For instance, eMule lets you view all manner of information on machines you’re downloading from, call up charts outlining downloading stats and check download status through an advanced progress bar.

The fact that eMule uses a large network of servers means the search results are abundant, but there’s one major annoyance with the client – it’s very slow at downloading files. This is largely because of the way it handles download priority, which takes into account the number of servers you’re connected to, the connection speed, and size of the file. eMule also relies heavily on a ‘credit scoring’ system, whereby people who use the service a lot are rewarded with faster downloads. While some may champion this as being in the true spirit of file sharing, the system makes it awfully frustrating for users new to eMule who are penalized with ultra slow downloads.

Having said this, it’s not difficult to see why eMule has become the most popular P2P app, and if you’re prepared to break the law and download music over a network it makes for the perfect accomplice. If you love downloading, you'll love eMule.