Claudio's apartment has arguably the best private roof deck in all of Florence; the 360 degree views are stunning! It was very much worth the walk up the several flights of stairs, plus a 2-story lift ride, and the additional stairs within the apartment!
The apartment itself is very spacious with tons of character, especially the large living/dining room and the full kitchen. The location is great, as it's a relatively short walk to the Duomo, Pontevecchio and Uffizi, yet just far enough away to have a more neighborhood feel close to the fantastic Santa Croce neighborhood.
Claudio and his father Rubes were very helpful throughout the reservation and check-in process. Even though Claudio wasn't available to meet us for check-in, Rubes met us for check-in and was very warm, friendly and accommodated our request to check-in early.
The only issue with our stay was the late-night noise coming from the bars/cafes across the street. The main bedroom faces those places and the noise can be a bit loud for a light sleeper like myself. It was much better sleeping in the upstairs loft bedroom, which also faces the opposite direction.