KDE looks like a desktop
I just installed the latest Ku-buntu and am really enjoying it. While the Unity/GNOME/Mac/Windows crowd are trying as hard as they can to build desktops that work like phones or tablets, venerable old KDE seems content to keep having a desktop that works like a desktop. KDE had gone off the too-much-chrome deep end for a while, but they now seem to have dialed it back to a usable level. And it's usable now. I plugged in disks that were formatted with NTFS or UDF and the file manager just appeared on the desktop, no fuss, no muss. I dropped the laptop into my dock (which it shares with a 'doze machine) and it immediately detected my second monitor, hardwired network connection, etc. and "just worked."
Linux may be a minority player on the traditional desktop but it's not because of any problems with it. It just never got the momentum, kind of like no one (even Microsoft!) can seem to penetrate the Android/iOS mobile hegemony. But I've even made peace with that, because Linux has utterly *dominated* everywhere else. Enjoy!