The location is absolutely amazing, just round the corner from the building you have the Largo de Torre Argentina ruins, Campo de Fiori is literally 5 min away. All big attractions can be reached within less than 30 min walk. Lots of restaurants & cafes in the area, also a supermarket basically on the corner of the street.
The flat is small but clean and quirky, and the terrace definitely makes up for space- just hope that the weather stays nice so you can enjoy it (the views are also a plus). The bathroom is clean and has all the necessary facilities. The kitchen space could be improved a little bit, but that's just my personal view, we were happy to have a fridge and a way to boil water for teas & coffees.
The hosts were very helpful and friendly and gave us some great advice about travelling to the airport (taxi at 4am in the morning) and about the area. Would consider coming back for sure!