So let's consider it a settled point that KDE 4.1 is very pretty.
There are, though, some issues I've encountered. I've always found KDE to be a bit buggy, and this one seems to be no exception:
- The "startup" music clip is truncated (I hear dramatic piano that begins, then suddenly stops). Strangely, the "shutdown" clip works fine.
- As a Firefox - Thunderbird user, I always have problems setting them as my default browser/mail client - this has been true in all my KDE experience.
- I tried to configure Kopete as my Google chat client, but it failed, saying that I didn't have a certain plugin installed (which I do see on my package list as installed).
- I'll mention here that my KDE 4.1 is installed onto my existing Kubuntu KDE 3.5 installation, which may be a factor in these issues.
- Well, (and this was lambasted in KDE 4.0 from what I've read) the desktop is no longer a "desktop" in the sense that you can just, say, download a file and put it there (which is something I do all the time). It is now a palate to place "widgets," some of which are actually useful, but are mostly nonessential eye candy as far as I can tell.
- Things are not as "configurable" as they were before. I can't, for instance, change my clock to display in a "12 hour" mode - not a huge deal, just a preference. Some of the things that are configurable are things I'm not that interested in changing, like the length of my task panel at the bottom of the screen.