If you are a casual user watching 50 channels, the standard ERD interface (which looks like it was designed in 2005) will be overwhelming. However, if you run a household with multiple TVs, a Plex server, or a hotel/bar IPTV setup, is the only tool that provides carrier-grade reliability.
A standard editor might let you move a channel up or down, but an "extra quality" tool provides deep customization. The goal is to turn a cluttered list of thousands of links into a personalized TV guide. Key features of a premium M3U editor include: erd iptv m3u editor extra quality