Jacopo's place was in pristine shape with beautiful decorating inside. Very clear directions of where things are located in the apartment and how to use the keys. As two female international travelers, we felt very safe with the multi-lock entrance, but there were various surrounding streets that felt unsafe at night, despite the apartment being near the police station and metro. Roma Termini was a 20 minute walk from the apartment through some shady streets with tunnels, so we would recommend taking the metro to/from Roma Termini, and you will be fine. Within walking distance to the Colesseum.