I used Fedora years ago at 19 and 20 and it was great then. It worked and... Worked. The desktop came with sane defaults. It... Worked.
But I too have shyed away from fedora the last few years.
I'm primarily a KDE user but I guess now is a good time to try fedora again if I get some time. (On my test vm now: latest Ubuntu with gnome. Also hoping to give solus/budgie a little more time.)
For the record Fedora Gnome was rock stable on the same machine. The only reason I didn't keep it is that I need what I call a 'pinnable taskbar' (like Windows 7).
If you really want KDE you could try KDE Neon, still a bit buggy for my taste but at least it's usable.
After a few more distros I settled on Mint Cinnamon. Not bad but frankly I miss Windows.
I no longer use them though (to get more screen space)
For me, I ran into a regression with compositing: https://bugs.kde.org/show_bug.cgi?id=354146
After I disabled the desktop effects Fedora 25 was rock solid.
I haven't upgraded to F26, I normally wait a week or two to shake out any big issues.
I'm currently on KDE Neon at home and at work until I switched jobs a couple of months ago and I also liked Mint Cinnamon a lot.