I liked the location. I think having lockers available in the room would help with security, rather than lockers in basement. Check-in process was lengthy. The top bunk in the room I stayed in was too close to the ceiling for my comfort.
It's always great! I stay there every time I visit Philadelphia, and I absolutely love it!
The hostel was in a gorgeous area and there is free parking on site, which is very convenient. The only real issue I had was with the linens - the blankets are not washed between guests and they didn't look clean, so I did not use mine, even though the AC was so high that the room was freezing. The bottom sheet was a bit too small and kept popping off the mattress in the middle of the night, so it wasn't a comfortable sleep at all.
Improve: beds. Absolutely horrifying, couldn't sleep on those matresses. Also, go a little bit more green; recycling etc. Bikes are okay. Staff was great. Dumb that you háve to leave the hostel from 11 to 16.30 - we live in a 24 hour society nowadays.