NaK

Hi everyone, I am an international student and going to Pittsburgh at the Pitt for a PhD. I know I have left my search for an apartment too late and most of the nice places (Shadyside/ Sq Hill) are gone , Can anyone tell me how is Penn Commons, area wise, specifically with regard to safety and accessibility (by Bus) to the Pitt? I am still on the look out for decent roommates in Shadyside.