Costanza's place is both spacious and comfortable. We had a short one night stay on our way to the Italian Rivera, but check-in was seamless, and the bed and shower were very comfortable.
Location was great. The apartment was a short walk from Central Station which proved to be very convenient for us to catch the train to our next stop. I'd check out Orsonero Coffee just around the corner for breakfast - it was amazing! Lot's of food options nearby too. Wish we could have stayed longer!