Not good, I’m afraid.
Now, before I go on, I want to clarify some things: First, I used archlinux, so the KDE I installed is plain vanilla. Any remarks I have about looks (especially GTK apps in a QT environment) aren’t present in distributions like Mandriva, OpenSuse or Kubuntu. Secondly, I didn’t even use the official KDE packages by Archlinux, but I used KDEmod, a modular install of KDE. And thirdly, I installed a minimal KDEmod, not the full blown everything-and-the-kitchen-sink option.
I also must say that Plasma has come a long way. It looks good, is fast, and doesn’t crash anymore, at least on my PC. I like that. But while configuring KDE to my liking, I also (and almost immediately) hit a few hugely irritating issues.
Let’s start with the menu. It stinks. It takes too much scrolling and clicking and mouse-movement to get anywhere. The classic KDE-menu option is way better (and available). It also doesn’t update automatically every time an application is added, but I believe that’s an Arch bug.
Secondly, there’s the integration of GTK apps in a QT environment…which quite frankly, doesn’t exist. Yes, the GTK-Qt theme engine is available, but tabs in Firefox looked horribly out of whack, and so did checkboxes in Pidgin.
And thirdly, the systray icons still look ugly. This should be solved with Qt 4.5, which isn’t available yet for KDE 4.2…
All in all, I end up with a desktop that looks gorgeous one moment and incredibly ugly the other. I’m sure I can work and hack and toil until things look decent, but I can’t say I’m enjoying that.