I used to love KDE back in 3.5, but ever since I was disappointed with the look of 4.0 I stopped using KDE and switched to Gnome. I am now pretty content with Gnome 3 as it is simple enough to just work and not get in the way of things. However, it is very limited. For example, I didn't find an easy way to simply use pure ALSA as audio backend instead of going through Pulseaudio. I did manage to make applications that use OpenAL use pure ALSA, and the result is much crisper and rich sound.
So... what is so good about these "new" KDE releases? Tell me what I am missing and why I should give them a try. I don't normally care for too much eye candy (in fact I hate wobbly windows and things like that) but I like have a smooth hardware accelerated desktop that makes it easy and fast to switch between several open programs like latex editors, function plotters, a few terminals, PDF readers and web browser.