I used to hate KDE, but nowadays I think every single GNU/Linux user should give it a try.
Most of settings and menues were confusing and weird for me, but I spent a few days understanding how it works and finally I got what I wanted.
The variety of customizations that you can do are really wide either if you want to have a minimalistic desktop or a full featured environment.
My suggestion is to do not give up on the first attempt and while you are navigating through the system configuration write down those changes that you are doing or even better run a backup of your settings, so in the future you won’t have to start over.
One TIP that drove me nuts: on Composition Settings for Desktop Effects -> Animation speed, move the slider to “Instant” and you will have a faster and smoother DE.