After helping my friend setting up KDE I discovered the level of polish and customizability that KDE now offers. That same day I installed KDE on my own machine and soon after removed every GNOME component from my system. I have been using it the last few weeks and really feel at home!

This was my reason for not using KDE for years. The UI these days is cleaner and leaner, rivaling XFCE in resource usage.

> I still find Gnome to be the most usable and aesthetically pleasing desktop by far.

This was my initial impression, as well. But if you want to do something that the GNOME team feels is superfluous, you're either out of luck or depending on some plugin that will break your DE if you upgrade GNOME.

On Plasma Desktop, almost everything is configurable, but it isn't overwhelming and disorganized like it was in KDE 3 & 4. There's a considerable amount of polish. Plugin bugs don't take down the entire desktop environment, either.