Since 3 days I'm using Ubuntu 5.10 nonstop now. The installation was easy without any problems. All hardware components on my laptop have been detected successfully.
The improvements to Ubuntu 5.04 make sense and are very useful. The look'n'feel generally is a little bit better, even though I still don't like the standard brown wallpaper.
I tried other brandnew distributions like SUSE 10.0 as well. But no distribution is as fast as Ubuntu 5.10 and has a comparable concept. I don't want to miss the apt thing with Synaptic, for example.
One thing that bothers me, is that Nautilus has no command line, where I can enter a path manually (like the KDE Konqueror). Is there a solution for that?