We liked the Testaccio a good bit. It is very much a local neighborhood of working class Roman people with really authentic restaurants, shops & stores (including hand-made fabulous shoes and clothes). It is very walkable and the street-tram is very accessible. Additionally, it is a short walk to the Trastevere, and about a 20 mins walk to the Roman Colosseum. This apartment is just one floor above the street level. That said, it is loud at night from the restaurant/bar below. Normally urban noise doesn't bother me too bad when I travel, but this apartment was too loud for all 5 of us that stayed. Light sleepers take note. The actual apartment was very clean and spacious. The bathrooms were renovated and nice, as was the kitchen. But, some of the furnishings (living room sofa, loveseat in the main bedroom) were worn and not very nice. In particular, none of us would sit on the living room sofa due to it's condition (you wouldn't find that I'm too particular by the way, this sofa just needs to go). All and all, I probably wouldn't stay here again, but it was a decent value for our stay. I will say that the management team that manages the place were great communicators and made our check-in very smooth. I found them great to work with.