This is a great place to stay when visiting Rome on a budget. Salvatore's place was extremely clean, and the Forge room was quite spacious - very comfortable for a 6-night stay and even longer. We had total control of how warm we wanted the room to be. Wifi signal is also quite good.
It is an 8-minute walk north of Termini (a safe area, better than to the south of Termini). It is a great place to base yourself as you can easily reach the centre of Rome by walk or by public transport from Termini/Castro Pretorio. You can also catch trains to other parts of Italy. There is the Mercato Centrale at Termini which offers great food close to home.