For anyone like me who loved KDE 3 and then was profoundly disappointed by the big changes and rewrites in 4, I have to say KDE 5 is back to being brilliant.

It's also the only desktop I know with a Fuzzy Clock that can be set to "accuracy=halfling" so you know when second breakfast has turned into elevenses.

It hadn't occured to me until now to try going back to kubuntu though (having been on Arch since KDE4).