We loved the location!! Easy to walk to the Colosseum, Forum, restaurants and gelato literally 10 steps away. So location cannot be beat.
Interior is cute and there are dozens of interesting books on the shelves.
Couple things to consider:
The terrace was a huge draw for us but it turns out the neighbors did NOT want us to use it. Two neighbors came out and scolded us angrily for a long time, even after we showed them that we were there legally. A third neighbor stepped in and explained that they preferred owners to be here, not tourists. Francesco got in touch with them afterwards but honestly, it ruined the rest of my time there because I felt so unwelcome. Also, as others noted, eating on terrace is not allowed.
The 93 stairs winding up are a serious consideration, also the narrow doorway. We’re average size for Americans :P But I know people who literally would not have been able to fit through.
Small kitchen, small shower, and open layout in the rest of the flat, so if you need privacy from each other maybe not great for you. With our 8 and 6 yo tho, we were fine. I actually enjoyed a kitchen so small you could clean it in 5 minutes!
Check in (a lockbox nearby) was easy. Francesco responded quickly to queries, which was helpful.