I've been using XFCE for the better part of two decades now (I still run into people upset about the changes XFCE made in 2003, i.e. 4.0), and I am perfectly satisfied. Though as the saying goes: what I don't know I don't know; so I may be missing out on a better experience, but at least I am content enough that I don't bother seeking it out.

Though, my monitors are also from 2010, so a lot of the visual problems people have with XFCE, I don't.