This apartment was a great homebase for my 4.5 day trip to Rome. I was able to walk everywhere—Piazza Navona (5 mins), Pantheon (10 mins), Vatican Museums (30 mins), Castel San’Angelo (8 mins), Trastevere, Spanish Steps (21 minutes), Colosseum (30 mins), Roman Forum, etc.
The apartment was very clean and had all the basics in the kitchen (plates/cups/utensils/cutting boards/pots) so I could make myself a quick breakfast before heading out for sightseeing. There are multiple small grocery stores nearby (Pam, Carrefour, but I liked Coop best).
Chiara was very friendly and responded promptly. She has a binder ready to go with info about the apartment (WiFi password), the surrounding area (gelato at Frigidarium), and how to preorder tickets to skip the line at the Vatican Museums or the Villa Borghese.
If you go in the off season, my one suggestion is to bring slippers, as there are tile floors throughout the apartment.