Ultramarine Linux is a Fedora/RHEL-family Linux distribution based on Fedora. Fedora made effortless — preconfigured RPM Fusion, codecs, hardware drivers, and multiple polished desktops.
Strengths: Eliminates all the post-install hurdles of vanilla Fedora; Brings elementary's Pantheon desktop to Fedora seamlessly; Friendly setup wizard. Trade-offs: Smaller development team than upstream Fedora.