In my trip across several cities in Europe, Dario's apartment was by far the best living experience I had. He is extremely organized and generous with his time - he explained the bus and Metro system very clearly, helped me get to and from the airport, and made recommendations on sights and places to visit.
The apartment is very clean and spacious. The Metro and bus stations are just outside the apartment, making it very easy to get to the central sightseeing locations. Breakfast is provided as well.