If you've ever wondered what it's like to try and play any form of StarCraft at a hugely competitive level, let me give you a piece of advice: don't. It's too bloody hard, the competition is relentless and it buggers up your hands something severe.
You're better off playing SC2VN instead, the crowdfunded visual novel that's free-to-play on Steam. It's short, but well constructed insight into the life of a professional gamer and professional competition in South Korea. And better news: there's probably going to be a sequel.