It is absolutely rock solid, you can adapt it to your workflow, whichever it is, change the window manager, have all the panels you want and go back to the default configuration immediately. It is an amazing desktop environment, extremely and easily customizable, because it is modular, and, in the end, it simply works. The default look is misleading.

I like the aesthetic and theming support

Gnome is very different than xfce and has a different workflow. I find the workflow of xfce very nice and like the modularity of it

Xfce allowed me to replace the default window manager by Bspwm. Also the panels are fully configurable. This is a totally different philosophy.