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Tumbleweed is stable enough to use every day. Updates are OpenQA tested to ensure stability before being released for Tumbleweed. Bleeding edge untested software can be tried using OpenSUSE factory.
Pro Tumbleweed + OpenSUSE Build Service
Pro Good selection of preinstalled applications
Pro Easy installation and cutting edge apps
Pro User friendly + Good support
Active and friendly user community, updates come fast
Con Little / no third-party support
Like it or not, most third parties don't want to deal with less-popular distros. So most of them only support Ubuntu LTS and those versions of RHEL/CentOS that are still supported.