We had a wonderful stay in Lorenzo's apartment! The highlight of course is the balcony with a beautiful view across Florence. We spent many nights out here enjoying some wine and snacks before dinner.
The apartment itself is spacey, with plenty of room to relax. The location was great, so close to everything! You can walk to everything in Florence (Duomo, Academia Gallery, Uffizzi, the market, etc).
Lorenzo was a great host. There was a lovely bottle of wine on arrival and he arranged a taxi for us to the airport on the day we were leaving. Great communication and a really nice guy.
The only thing to note (and as others have mentioned) is that it is a steep climb home! You have a long sloped road upwards, and then about 5 floors to climb inside the building. There's aircon at the top though so we recovered fairly quickly :) totally worth it for the beautiful views too!