The apartment is in one of the greatest location in Rome. Highly recommended if you want to explore Rome.
The area is busy at night but the apartment is surprisingly very quiet.
Two small notes: 1. there is a nicely equipped kitchen and living but it is dark so the place would would not be suitable if you are thinking of spending a lot of time in the apartment (say to work) - 2. The apartment is in a pedestrian only street - if you need to take a cab you need to walk for a couple of minutes, this is very manageable but keep this in mind if you have a lot of luggage - (we did and our taxi driver didn't know about the pedestrian area and ended up dropping us off in the wrong place)