I definietely recommend Tommaso's house. It is very well located near Termini station but it's quiet. It has very good atmosphere and interesting design. There's the natural air flow between the rooms and you don't need the air -condition. We travelled in very hot August and the apartment was very ok. After walking all day, the elevator was a very useful thing. The kitchen is well eqiupped. Tommaso is a great host, waited for our arrival at midnight. He prepared lots of useful tips and maps for visiting the city, plus welcomed us with the fridge full of drinks and snacks. It was very nice. Me and my daughter had a great stay in Roma.