Tommaso is an excellent host with a lovely property.
The property is on the main Sante Croce square on the second floor of the building (no lift). The lounge is bigger than it looks in the picture and is decorated beautifully. Some of the couches look a bit tired but that's to be expected in a hired place. We had a great time playing cards and pool when we were relaxing back at the apartment.
The large lounge leads through to the dining room where the rest of the house leads off - doors to 3 bedrooms, the (well equipped) kitchen and 2 further rooms upstairs, and a outdoor little terrace. The bedrooms were large, comfortable and all had their own bathroom.
On the Friday night we hired a chef recommended to us by Tommaso (Manuela) and the food was delicious. She also cooked so much food we ate the leftovers for Saturday night dinner (and there were 8 adults!)!
Tommaso was a great host, communicating well in advance of our trip. We were travelling with our 18m old baby so needed a cot and a high chair - both which he provided (and both were in good nick and clean). He met us at the apartment when we got in from the airport and gave us a thorough tour of the house. Really couldn't recommend him enough.
The only slight negative to our stay was the noise. We happened to be staying at the apartment on the weekend of both a 10k run which finished in the square on the Sunday (but they promoted and were setting up for all Saturday), and the Florence leg of the Mille Miglia (classic car rally) which passed through the square non-stop on Saturday. This made the square a bit of a hive of activity day and night and some revelers could be heard well into the small hours. So just be aware that this could be pretty busy/noisy place to stay and to bring ear plugs!