Marco's apartment was a fantastic base for exploring Rome. It was so close to the Vittorio Emanuele metro station which links up to all the main metro stops including Ottoviano for the Vatican, and Spagna for the Spanish Steps, (all for €1.50 flat rate!).
The apartment is well equipped with kitchen facilities but also plenty of toiletries, hairdryer, even straighteners!
Marco is always available to speak to if needed and offers lots of great recommendations including Vecchia Roma and Fassi gelato (must visits!) which are again less than 5 minutes from the flat. I found this the best area of Rome for breakfast, lunch and dinner.
If you are a light sleeper I would recommend ear plugs because of the proximity to the entrance hall and the street, I used them and could not hear a thing.