We loved our stay in Piazza di Santa Croce! The apartment was well furnished and had the perfect layout for a family with two younger kids, especially with the loft with two beds. The view from the terrace looking out onto Piazza di Santa Croce was amazing. We were able to watch the first match of Calico Fiorentino from the balcony, and our kids loved being able to see the match. The location was super convenient, and we walked most places.
There were a few downsides, however. There were a lot of stairs to get up to the apartment, which were generally fine most days but challenging for bringing luggage up and down as there was no elevator in the building. The shower was super small - it was just enough space to stand in - and the shower knob was difficult to adjust in terms of water temperature (it was mostly very hot). We are used to small showers in Italy, but this one was half the size of the other rentals we stayed in. Also, our trained was delayed (but still in the check-in time frame), and the host had us get into the apartment on our own, which was a bit confusing since we weren't sure where to go, anything about the neighborhood, etc. There were no clear check out instructions, although we were told to take out the trash after we asked (even then we went hunting to find a place to deposit our trash). I think for future renters, it would help to have smoother check-in and check-out procedures.
Aside from these few minor details, we really loved this rental!