Kubuntu & KDE4 - an entirely different story...

I've always been a big fan of KDE3, on Slackware, and given that I am doing all of this (really) to set up dual-boot systems for customers I thought that the KDE Desktop might be preferable. I just downloaded and installed Kubuntu 10.04 and, after doing all of this initially with Ubuntu and Gnome, I was really disappointed with Kubuntu and KDE4. Whereas I'd always found KDE3 to be very much like a patched-up Windows XP environment (stable and pretty fast on a decent PC) KDE4 appears to be modeled on Windows Vista or Window 7 but the result - in my opinion - is fairly disastrous. That, of course, is just my opinion. It looks fairly nice but it operates quite oddly and I found numerous bugs. For instance, you cannot copy anything directly to the Desktop except in tree view mode. This is not a bug - it's designed that way, but, in my opinion it's an odd feature/limitation. I mean, how in the world is that a good idea? You can add Mac-like widgets to your Desktop but if you attempt to position them to your liking, usually, dragging one around causes other to move about in a random fashion. At first blush, for me, the thing is a real train wreck...and there's no way I'd install on this on a customer's computer to let them try figure all of this out. I wouldn't install it on my own computer.

What else is wrong? Honestly, I'm not sure at this point.