“Today KDE releases its first Long Term Support edition of its flagship desktop software, Plasma. This marks the point where the developers and designers are happy to recommend Plasma for the widest possible audience be they enterprise or non-techy home users. If you tried a KDE desktop previously and have moved away, now is the time to re-assess, Plasma is simple by default, powerful when needed. ”

dot.kde.org/2016/10/04/kde-20-plasma-58-lts-out-now-comprehensive-features

I've been using it since the beta, and it's working really great =)