openSUSE is an independently developed, enterprise quality distribution backed by SUSE Foundation. In addition to all beneffits of regular GNU/Linux distribution, it comes with powerful system administration and configuration tools like YaST - a comprehentive linux system configuration and installation, OBS - Open Build Service, build tool supporting builds for openSUSE itself and other main stream distributions like Fedora, Ubuntu, Debian ..etc.
openSUSE comes in two different flavors. The Leap edition is an extremely stable, conservative, professional quality distribution. It is a regular release distribution of openSUSE. While, the TumbleWeed edition is a rolling edition with bleeding edge technologies.