It's StarCraft. Blizzard didn't muck around with a good thing. They didn't change a whole lot about the UI, except that it's gotten a graphical upgrade. The game is very good-looking, but I really love Blizzard's art style so I am not particularly objective in this matter. The screenshots and movies available up to now did not do this game justice, visually. I've only played one match so far (as Protoss), but each of the units which carried over from SC1 felt just right, and each of the new units felt like it had a unique role to fill on the battlefield. None of the new units I experimented with felt shoe-horned in or out of place. There's a new screen on the post-match report that shows your build order and your opponent's side-by-side. Considering how much I suck at this game (and sucked at SC1 in multiplayer. . . and WC2. . . and WC3) and how much of that suckage is related to build order, this seems like a great tool for improving one's skill.