Basically, automated everything for keeping track and downloading of movies, music, comics, adult content, etc.

Requires work to set up on a home server and costs money for usenet service and private indexers.

Once set up, you just plug in the shows, movies, music artists you want and the various services monitor indexers and grab what you want when it becomes available.

The nice thing is many of the *arr apps also can use torrent sites and interface with your torrent client so you don't necessarily need to use usenet to use the system.

So, definitely positives and negatives.