EXCELLENT value for the price, and I would absolutely stay again. This is a great place to stay for solo or duo travelers. It's a twenty minute walk to the Colosseum, twenty minutes to the central transit station (Termini--perfect if you're going from Antonella's place back to the airport or continuing on through Italy). Despite there being ample metro stops nearby, In four nights, I think I used public transit only once. Antonella was on holiday during my stay, but her son Lucca was incredibly helpful and friendly.
The neighborhood itself is not what I'd call scenic, it's a pretty gritty neighborhood, but there is a very cool park nearby with some ancient ruins that is nice to walk through, and the neighborhood is well-lit at night. If you're a power-walker like I am making your way through Europe, this is an ideal spot. I'd say it's like a typical "student" neighborhood in a big city.
It's not the ideal place if what you want is to walk outside your building and immediately see the beauty of all the tourist-y Roman destinations, but that is also nice because the streets are not flooded with tourists, and it is quiet at night. Most of the other travelers staying in the area seemed to be younger, and probably on a journey similar to mine. It's MUCH better than a hostel, and the amenities are all very nice, but the neighborhood is not a glitzy spot. It looks a little rough around the edges on the outside, but it's very nice inside. If you're from a city, you won't think twice about it.
The apartment is clean, well-equipped, and everything was as described. I really appreciated having body wash and shampoo etc. provided, even though I always bring my own. I would highly recommend if you're looking for a home base as you explore Rome on your own. I've paid a lot more for a lot less.