Wanted a new UI layout, a bit different from the one I used for years. Made it for my tank at first, though my healers also fancied the layout. Obviously, the damage dealers soon followed. ^^'
Should, as all UI's, work on every version of WoW. I'm on 1440p, so you might have to move some things around a bit. Oh, and if you're solely a damage dealing player, feel free to move the party and raid UI off to the borders of the screen.