I tried to find something negative for Stefano and his house but i can't. He is great person and very polite. If you need something speak with him and in a sec he will respond you. When we arrived (with a little delay) He came and took us from the train station and showed us the neighborhood (this is important for the host).
The house was very clean (this is me most important in any house). It's close to everything. If you love walking you can go with foot to everywhere (Vatican in 3 minutes, Castel Sant Angelo 6-8 minutes, Piazza Navona in 10-13min, Fontana di trevi 18-20 min and you can go to Colosseo in 30min).
I will come again to Rome and i will go Stefano, i loved it. Till next time Stafano. Cheers.