Rosa's place was beautiful and located in a very good area. The train station San Pietro is nearby ( 3 min walk) and off course the Basillica itself is very close. You can reach almost every attraction by foot if you're a person that likes to walk. Or you can take the busline 64 at San Pietro station to get to Colloseum, Roman Forum and Termini station. My aunt and I felt very welcomed by Rosa and her husband and had a wonderful time staying with them. I highly recommend you to stay at this place when you want to come and visit Rome.