A little while ago, while working on my current universe, I came to the realization that some of the names I was using (primarily for the nations of my newborn world) didn't really roll off the tongue.
I've noticed that alot of authors tend to make their primary characters and the nations and worlds that those characters exist in have easily pronounced names. The two authors that I have read the most (David Weber and George RR Martin) have made their primary worlds and characters such.
So as I was rereading through the first few chapters of my new world, I decided to change the name of a few characters and the names of a few nations. Not only so the name of the nations themselves but also the name of those nation's citizens. For example, originally the main nation was going to be called Bradig. But I realized that the citizen of that nation would be what? A Bradigite? A Bradigian? So I've renamed my nation to something easier.
When reading, or writing, how important is it to you to have names that you feel are easily pronounced?