I stayed at this place for a month and although it's is very small I was fairly happy with the facilities. The one thing that I wasn't happy with was the condition of the shower. Some guests have commented on it being very small but the big problem is the black mould which need some serious maintenance.
The location feels safe and peaceful but be warned that it is up a very steep and long hill. The bus which passes by is very infrequent and cannot be relied upon. There are plenty of buses at the bottom of the hill to take you to many places in Rome.
My biggest disappointment was that although I was staying for 28 days the was no comfortable chair to sit on and relax. One is shown in the photos but it wasn't there.
The price I paid for 4 weeks was very good and I would return but I would suggest to Camillo that the place would benefit greatly by having a few 100 euros spent on it particularly to upgrade the shower. Brightened upit could be a lovely little place for one person.