My wife and I have just had a fantastic stay at the apartment. The communication with Alessandra was excellent beforehand and Alberto who met us with keys etc was lovely and provided some great local recommendations for restaurants. The apartment is very comfortable, well furnished, spacious, secure and is in an excellent location.
Like any prime city centre location, there is some street/Road noise as expected. This didn't affect us as we were up early anyway to get out and explore the city but is worth bearing in mind if you're a light sleeper or plan on a different type of stay in Rome with lie-ins etc.
A fab set up though and we'll definitely return again.