I highly recommend this apartment in which I stayed for 4 weeks. Testaccio is a lovely neighborhood with plenty of excellent bars, caffes and restaurants. The apartment is a 2-minute walk from buses and trams that connect to all the major sites. Metro Line B (Piramide station) is 8 minutes away by foot. The building has a guardian if you need to receive parcels which was my case. The apartment is spacious, neatly furnished. It includes a super useful guide on various shops, doctors, hospitals, restaurants, as well as useful Italian phrases:) The responsiveness of the airbnb team was remarkable. They are available 24/7. I would stay there again!