I've been using KDE on & off for 3 years. Not being a great fan of GUI's myself I spend a lot of time at the console but whenever I am using X Windows I will always be using KDE. It has a nice layout and there are some excellent themes available to download. If you are into coding your own applications the KDE libs are great, pretty simple. Well, I looked at them briefly and found them a bit easier to understand than the Gnome libs for example. KDE has been very stable for me, i've never had any problems with it actually. I haven't tried KDE 2 so I couldn't comment on that, but it looks great and i'm sure i'll get round to trying it out in the near future.
It looks like windows It acts Like Windows Hold on a minute it is windows - or is it! You might be pleasantly surprised by KDE. It was especially useful to me when I first broached the Linux Barrier! I came from a nice easy GUI to a new command line interface that I didnt know how to use!!! And where were the good old DOS commands when you needed them LOL! But then I stumbled accros KDE when browsing my SuSE CDs - and what a difference it has made! I can actually see what I am doing now! It even makes the old /mnt/hdd1, /mnt/hdd2/ system work! For those of you who dont know linux its like this, In windows you have a:, c:, d: and maybe more but in Linux you get /mnt/floppy /mnt/hdd1 and /mnt/cdrom Confused? I was! But KDE lays this out like windows does, with a few minor changes seeing as they arent seperate drives in Linux - they just make up the file tree layout! But all in all it makes that Linux Penguin easier to digest!!!