It is rather biased. At the same time, to a certain degree, it's as biased as the Keynesian school or whatever they teach us in college. If you read the earlier books from people like Carl Menger, you realize most of the discoveries in economic thought have been from the Austrian school. Don't pay attention to clowns like Rothbard that are bias. Mises and Carl Menger are good. Hazlitt is good too. Hayek as well. After that, the more recent austrians are a little unintellectual although they are usually right.
By bias, I meant that the way it has been taught to me has been largely presented from an Austrian perspective- I'd like to hear a sort Keynesian rebuttal.