I have been trying Kubuntu for last week or so and so far I am really liking it. I must say that I am impressed. KDE looks a lot more polished and stable than Unity or even GNOME 3 for that matter. The UI is really sleek and stylish. The effects are good looking and so are fonts and icons. The text in title bars, buttons, menus and everywhere else is thinner and a lot more smoother than it is in Ubuntu. And most importantly I really like Kate. I am used to Notepad++ and Gedit always felt so ancient in comparison. But Kate seems like a good replacement. I think I will stick around for a while.