Marvellous apartment for four, or five persons. Our shuttle dropped us hours too late, but still the welcoming was warm, and the gentleman that welcomed us took his time to show us the apartment and to give us a 'lecture' about the history of Rome. Very nice!
The neighborhood of Ciao Bella is perfect; nice restaurants and bars, close to the Coloseum and Termini station, perfectly in between of metrostations Colosseum and Vittorio Emmanuel.
I strongly recommend this address!