We had a great stay at Maria Adele's place. The apartment is in a very Roman condo, so it was a great experience.
For my boyfriend and I the distance between the apartment and the Termini station was OK, but I'm not sure if it would be the same for everyone -- it tooks at least 15 minutes walk to get there.
I love the neighbourhood! And Maria Adele is kind and the comunication between us was great.