We LOVED this apartment. The terraces and the location are truly the reasons to rent it. There are so many amazing restaurants and shops nearby, and we walked everywhere: the Spanish Steps, Piazza Navona, Trevi Fountain, Pantheon are all so close, and we even walked the 25-30 minutes to the Vatican easily. The apartment was stocked with fruit, coffee supplies, condiments/jams, etc. and we enjoyed coffee in the mornings and wine in the evenings up on that lovely terrace.
As she mentions in her description, the apartment is up 4-5 flights of stairs (being from NYC walk-up territory, this didn't phase us), and anyone who walked up in the dark just didn't find the timed light switches at the entry or next to the apartment's door. Whoever checked us in was very kind and understanding when we arrived several hours late with little warning (we'd had no wi fi to let them know in advance).
We felt the street noise was a little loud when we slept with the windows open, but you're in the middle of a popular area in a big city so it's rather to be expected (and closing the windows does make for quieter sleeping). All in all, we had a marvelous visit. Thanks!!