The Tiber apartment in Testaccio has a great location, we loved the neighborhood. It was right around the corner from Trapizzino and a couple minutes walk to the amazing Testaccio market. We loved our view of the fountain and river. It is on a very busy street, so bring earplugs if noise bothers you. Fabio was very helpful, and when we needed a few items for the kitchen (we stayed a month) he brought them to us right away.