Starcraft II is a great, great game. And that does make me a little sad; I honestly expect this one to be one of the last great PC games ever released. Consoles are dominating more and more, and games like this for the PC are becoming more and more rare.
But it’s an astoundingly good game. If you liked the first one, you’ll adore this. If you’ve never played an RTS, you’ll still adore it.