I arrived in Rome as an Erasmus student, and I stayed here for a week, before finding a long term apartment. And it was absolutely perfect. I did everything by walking, the Colesseo is a your neighbour and Santa Maria Maggiore is at the end of the street, San Giovani on the other end. Really close to Termini central station with very good connexion to transports. You benefit from the residential quality of the neighbourhood without being in a touristy place. Many bars and restaurants around. Lory is an adorable host, she can give you informations about the city and the neighbourhood. The apartment is extremely clean and lovely. Definitely the right place to stay in Rome for a few days !