Giulio's apartment in Santo Spirito was perfect for our family trip to Florence.
My family of 4 stayed there comfortably for 3 nights.
Giulio's a friendly, welcoming young man who earns top marks for follow-through and excellent communication during the booking phase and lead-up to our arrival and also during our stay. He met us at the appointed time and got us settled in, made himself available in case of need/issues/questions. At the end of the stay, we set up a check-out time by e-mail. The whole process was easy and stress-free.
The ground-floor apartment is simple but clean, with 2 double bedrooms, separate bathroom and living/dining/kitchen area. There is a small rear balcony usable only for hanging laundry to dry. Overall, the place feels like a young person's apartment. It was quiet and cool (we were there in May).
The kitchen is fully functional, and comes stocked with those essentials you don't want to buy for a short stay (dish soap, paper towels, salt/pepper, cooking oil...), as well as some foods (all usable) and a bottle of wine from the bulk wine merchant up the road (check it out for good value local wine).
The bathroom works fine, and the shower was spacious by Italian standards and delivered plenty of hot water. There's even spare toilet paper (not all places in Italy).
Bedrooms furnishings were simple, but the beds were comfortable with decent pillows and crisp linens. Clothes hanging space is a free-standing rack (not a closet), and there were chest of drawers.
There are tile floors and colorful walls throughout. WiFi worked without a hitch.
The apartment is located on one of the main arteries leading in/out of the old city of Florence - very easy to get to by bus from the train station. The neighborhood feels very non-touristy, and the locals and shopkeepers are welcoming. There is a small supermarket 5 doors up the street and numerous smaller shops within 5-minutes.
We walked to downtown via the Ponte Veccio in 20 minutes, and the entrance to Giardino Boboli is 2 blocks away (but be prepared to pay to enter the park).

Ciao Giulio - molte grazie!