The apartment is perfect for a first time in Florence. Super centrally located to all the major Basilica, and the Duomo (5min walks). It gives you an authentic feeling of traditional Florence apartments, with hard wood floors, high ceilings, high large windows, lots of natural light, large bathroom and kitchen, and living room. In total I would guess about 90 - 100 square meters. It is on the 4th floor, walk-up, so good for the heart and legs, but not for anyone physically challenged. We enjoyed the walk-up on the old stone stairs. We were a family of 4 with 17 and 22 yr old children, visiting end of June 2021 for three days. Temperatures were around 35-38 Celsius, and we did not really use the roof terrace with amazing view, as it was simply too hot. We also did not use the kitchen facilities, so cannot speak to that. Thankfully there was AC in both bedrooms and the living room, so we were able to sleep without sweating, and kept the windows closed, so no disturbances from the street noise.
Sid was easy and quick to communicate with and made the arrival and departure very easy, although he was not able to meet us in person.
I would definitely recommend this apartment.