All in all, we had a great stay.
Roberto was extremely accommodating. He answered all questions within minutes of our emails. He went so far as to prearrange transportation from the airport and to the train station for us.
The flat is in a neighborhood about 4 blocks from the Metro. So, getting around Rome was easy.
Roberto’s apartment is on the second floor (3rd floor in US). The entry to the building is controlled so you need a key to get into the building. It has a small elevator that was great in taking our luggage up.
The flat has two bedrooms but it also has one extra small room which contains a small bed. There are two bathrooms with one being en-suite. All bedrooms have doors leading to a terrace that runs the length of the apartment.
There is a small living/kitchen/
dining room. The bathrooms are utilitarian, although the showers are small. If the user is large using the showers will be tight.
The only issue was that we were two couples and only one set of keys was provided. In all fairness we didn’t think to ask for an extra set until the third day when the other couple and us went separate ways.
Right across the street there is a mom and pop grocery/wine shop, a cafeteria and right next door is another shop that sold beverages, wine, soft drinks, fruit juices and beer.

Within 4 or 5 blocks there are cafeterias, bakeries, pharmacies, a small supermarket, tobacco shops.