The apartment has a fantastic, central location and is very walkable to major landmarks (right next to the Trevi Fountain). Communication with the host was easy and the apartment was very clean and well kept.
The apartment is small, but worked well for us since there were only two of us and we spent the vast majority of our time exploring the city - we did not require much space.
Since it is so close to a major tourist hotspot, you will want to bring earplugs with you for sleeping at night as there is a fair amount of noise late at night.
Overall, we had a great stay and would recommend to others.