We ( 3 girls) decided to rent Massimo's flat to visit Rome in december. When we got to the flat, the daughters of Massimo were waiting for us. They were nice and they showed us how things work in the flat. The flat was nice, clean, cozy, there were everything we needed.
In about 10 minutes walking you reach the Termini station and about 25 minutes walking from the flat you reach the Colosseum. You can also use public transport (metro, bus, tram) to visit all the monuments.
The flat is in the area where is a lot of restaurants (we could recomended Steak House on the main street), you also can find supermarket and a lot of shops with vegetable and fruits, but we didnt feel that safe in that area. The streets were mostly dark and not that clean.
We enjoyed our stay, Rome is beautiful city with awesome monuments (just be beware of pickpokets). We would like to thank to Massimo for nice place to stay and for fast asnwers to our questions. :)