A few other commenters seem to be confused about the purpose, so here's what we use Restream for: easily switching streaming destinations without reconfiguring

A few other commenters seem to be confused about the purpose, so here's what we use Restream for: easily switching streaming destinations without reconfiguring our encoders (eg we use Twitch for informal student facing content, LinkedIn + FB + Periscope for content we want to be seen by professionals). Honestly I was also initially skeptical of its utility but it turned out to be pretty worthwhile.