We had a lovely week in Rome staying at Alessandro's apartment, everything was as decribed, clean , quiet area, air conditioning, Wifi etc. Everything you would need for a week away.
We ate locally most days which was much more reasonable than in the city.
Metro station is about 10 minutes walk away, 1.5 euros for 100 minutes of travel and you can be at the Colesium in 4 minutes.
Overall it was a great week staying at the apartment and we are considering going back.