My sister and I stayed here in the last few days of a long trip across Italy, and we couldn't have felt more welcomed and amazed. Massimo is truly an incredible host; he was prompt with communication, gave great recommendations for things to see and places to eat, helped us carry our bags up the flights of stairs, and even took us to the airport early in the morning for a much better price than Uber or the trains.
The apartment itself is in such an incredible location- the view of the fountain from the hall is perfect and allowed us to enjoy the fountain above all of the summer crowds. The neighborhood is lively until late into the night, but we weren't disturbed by the noise as much as we thought. We were able to walk from the metro stop to easily find the apartment, and it's in a great location to walk to most of the major sights.
Massimo had coffee and croissants for us, which made us feel at home. Also, after a few weeks of tiny showers, the large standing shower with rain water head felt like the best shower I'd ever had!
I would highly recommend staying here. You will not regret it!