Spent two weeknights at Herve and Laura's apartment directly in front of the Vatican City wall.
Pros: as others have noted the hosts are a joy. They are genuine in their desire to be of service, that was very clear! Laura was unavailable when we arrived and so we were oriented by Herve (no English) and his sweet son (some English.) The apt itself is very clean and most things appear as new, in a kind of Ikea style. The portable wifi us a cool amenity.
Neutral: the place was more plain and Spartan than the photos suggest. Also I would not if it were my place say area is elegant. It's not. It's a working class building in a middle class hood. Didn't bother me but I think it's important to create realistic expectations.
Cons: I would definitely not describe the location as quiet! It's directly on Viala Vaticana which is a major thorough way and very busy with both cars and the non mufflered motorbikes which are everywhere. There was also people noise in the night hours from an adjoining apt with children that were quite loud. I was drawn to the "quiet" in the description but didn't have to spend the night to immediately know how unlikely that description is and we were not even there on a weekend! I didn't need the kitchen but would have been very unhappy with it if I'd planned to cook. It's train compartment small- you can't move in it frankly, only side to side. Not a big deal for heating things up or making coffee but not a cooking kitchen, FYI.