It took me along time to switch from KDE 3 to KDE 4. I finally upgrade with KDE 4.5. Before that, things crashed. I wouldn't recommend anyone KDE 4.0 ... 4.4.
Since 4.5 IMO it's rock stable and beautiful.
I didn't even switch the wallpaper or the window decaration, what I always did before.
It just looks beautiful and is more configurable than ever (if you want to).
Posted Feb 9, 2012 0:19 UTC (Thu) by lenov (guest, #15428)
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Entirely agree. I have been a KDE user since 1998 (with intermittent escapes to Gnome and GNUstep) and I almost gave up at KDE 4.1. But I'd say for the last two years, I did not meet a major problem except the classical wireless manager issue (and that is not a KDE problem), very easily fixed. And in my workplace, more and more users are selecting KDE over Gnome when they receive their new machine.