So I stayed in the Mancini Hostel one night olny. Is really close to the train station so that can be convenient, but you have to know that it is not a nice neighbourhood, I didn't felt like going out because I was little frighten. People is nice and they will give you all the information you need, but is not like a young-friendly place. The room was too small for six people who was staying inside. I'm so sorry to say this but if I come back to Napoli, I deffinetly won't stay in Mancini Hostel. Is better to pay a little more and sleep well and be able to go out at night.