The apartment location is excellent - right on piazza di Spagna, 2 minutes walk from the main via del corso.
Its a rather old building with no elevator and the apartment is located on the 2nd floor. Its not a modern one but has very good beds and hot water. The kitchen has all the basic appliances. TV is quite small. No dryer so that made the washer a bit redundant for us as we didn't have any way to dry the laundry. Wi-Fi signal - inconsistent across the apartment.
The living room is huge and very nice designed.
The apartment can get some noise from the piazza at nights.
Communication with the owners was excellent.
Overall - a very good stay! Will definitely consider for the next time in Rome