Hi everyone! I've lived in Philadelphia for nearly 3 years now--I work for and attend Temple. If anyone has any questions about specific areas, I'm happy to answer to the best of my abilities.
Espresso Shot--as far as the North boundary goes (I'm totally clueless about South Philly), for myself, I would put that at between Girard Ave and Cecil B. Moore from Broad Street into the West, and up further East of Broad Street in the Fishtown and New Kensington neighborhoods to around Berks Street, For some people, living past Girard would be....uncomfortable, I guess. The area can be perceived as rough. I live on Girard and walk North to get to work everyday, and I'm absolutely fine with it (nothing remotely dangerous has happened to me, and I walk home at 10-11 at night), but I guess it required a bit of adaptation.