We've enjoyed our stay at Patrizio's place very much. It has a unique atmosphere due to all the thoughtful little touches. Patrizio was very communicative and helpful and even allowed us to leave our luggage inside during the last day since the flight was at night. The location is great - close to both the Colosseum and the Termini station by public transport. The kitchen also offers everything you need to cook elaborate meals.
I would definitely recommend this place as it offers a lot for its price in a city where such value is hard to find elsewhere.