The place was absolutely lovely! we had a view of the Vatican from the balcony and I think the location was very good as well, we were not too far from the center (about a 10-minute bus ride to the heart of Rome) but we weren't around a very busy place either so it wasn't noisy. The Vatican was obviously very close, easily walkable.
The house itself was very nice, the space was more than enough for 4 people, to be honest
the only complaint I have would be about the heating which we think turns off at some point during the night, this likely has nothing to do with Simone, more likely to be due to the building itself.