Get some, Google Maps.
-Amazing sense of scale that looks great when zoomed out thanks to the UI.
-Swarms of aircraft flow realistically, as do most ground troops. Some of the robotic units and commander units are very cool looking, especially up close. Nukes are also an awe inspiring component of the gameplay.
-A variety of ways to whittle down or rush the opposition, it leaves a lot of room open to creative strategies and that's the #1 thing that makes RTS games so fun to play.
-Multiplayer features and game options are nicely done.
-The graphics quality is pretty good.
Bad:
-I'm not a fan of the story. It seems like a rehash of other strategy games, and the voice acting is below average for the most part.
-A lot of single player maps rely on massive amounts of unit production in order for you to win. This takes a long time to work up to and gets rather boring.
-I can't stand the transport units. There's just no easy way to use them. Load units on. Move the transports. Unload the units. Reorganize the units. Move the transports back. Very cumbersome.
-The scale becomes so overwhelming that it's no longer possible to micromanage all of your units in a timely fashion. This is a problem when you're up against Koreans in multiplayer that can literally out multitask you to death rather than simply using a strategy that is more clever than yours.