KDE 3.5 is still the best desktop environment I've ever used. I pretty much stopped listening to music on my local computer once it became too hard to use Amarok 1.4 (Clementine is not an adequate substitute), and more generally I basically gave up on local applications once I couldn't run KDE3 (e.g. I started using webmail instead of KMail, google docs instead of KWord, ...)