WildStar, a comfortable default interface is going to play a big role in how the game feels to new players. The game's latest development blog shows off the game's old UI from earlier beta tests as well as the newest iteration, with the latter incorporating a great deal of tester feedback to make the whole thing better.
The revised UI takes up less crucial space in the center of the screen, also known as "the space where players are watching for telegraphs." Core actions are more central and easily accessible, while additional bars are positioned along the sides. The new UI also does a better job of displaying the health and resources of the player at a glance. If you've played the game but aren't terribly fond of its default interface, you may want to glance at the development diary and see if the redone setup is more to your liking.