Mostly the GUI, which is reminiscent of Netflix, and also the torrent client config. You hit play button on a video poster image, client sequentially downloads

Mostly the GUI, which is reminiscent of Netflix, and also the torrent client config. You hit play button on a video poster image, client sequentially downloads blocks of videos until the buffer outruns the download rate (this is the main difference from other clients which can’t/don’t download blocks sequentially), then it autoplays, pausing for more buffering if needed, with one click.