The apartment is located at a convenient location and you can walk to a lot of attractions Campo di Fiori, Piazza Navona, Trevi fountain, Pantheon and the Spanish steps (about 20 mins).
We were two of us and the apartment was quite spacious for 2 people. It can easily sleep 2 more people on the Sofa bed downstairs, not sure how comfortable that is though. Although there are 2 bathrooms, the one downstairs was absolutely unusable as it smelled of sewer. The bathroom in the bedroom was fine. There is also a strong fried fish smell in the apartment due to a restaurant right below the house. This is the first thing that hit us as soon as we entered the apartment.
There were also a few ants in the kitchen.
All in all, the biggest selling point for this apartment is its location. There are good reviews for this place and that is why we booked it but our experience was not good and unfortunately I would not stay at this place again.