As I type this post, my boyfriend is sitting next to me playing it. I hear "Additional supply depots required," "Require more minerals," and "In the rear with the gear" all day long.. (He's a terran player.) When he's not playing it, he's watching live streams and you-tube videos of people commentating on it.
He desperately wants me to play, but my computer isn't capable of handling the graphics yet (new graphics card soon!) and it really doesn't interest me all that much. I'd rather watch it than play it, cuz I'm more into mindless video games, and SC2 definitely isn't mindless.
@Jul!a- If you liked the first one, you'll love the second. It's a bit different, but my man was obsessed with the first when he was much younger, and clearly things haven't changed much.