Gianluca's place was in the best location! We were able to walk everywhere even the Vatican in a short amount of time. I think the farthest place we walked was the Trevi Fountain, which was way too crowded anyways so we had no desire to stay there. The street is cute and quite. The loudest thing you might here are the car sounds echoing off the buildings. During our stay an alarm to a business keep going off throughout the day and night, but I'm hopeful this was not a normal thing to hear.
One thing to be aware of, this is a small studio. The flat is seemingly smaller than it appears in the photos. This is not a bad thing, but keep in mind if you are tall or larger in size. My husband was very uncomfortable using the toilet because there is no leg room and the shower he felt he couldn't move. I was just fine! :-) I've seen a few other comments about the air conditioner and have to agree it just isn't strong enough to send air in the bedroom. We were a bit hot as we slept, but didn't want to keep the windows open due to the echo of sound off the buildings. If you go in cooler months, I'm sure this is not a problem!
The check in process was easy and Gianluca arranged transportation for us from the airport. This was a great service he provides. Our last day we had a conflict with a scheduled tour to the Vatican and needing to check out in time but we found lots of luggage storage places and even one near the Vatican which opens at 7am. This was perfect!
You won't regret the amazing experience being closer to Piazza Navona.