So far, I’ve used GNOME-Shell for at least 10 minutes and Unity for at least 15. And it was six months ago. Just to tell you how much I’m competent on the subject. And I didn’t like them. Not at all. I’ve my own ideas about the desktop.
So what? What is the point about liking or not liking? You don’t like blue? Does it make blue a bad color? User interaction is an engineering science. You identify a problem, you design prototypes, you conduct experiments to choose which design has the best result (on a scale that you built as part of the experiment). The fact that you like a prototype more than another is not relevant.