We had a great time staying in Lorenzo's place. The apartment is spacious, definitely more than enough room for 2 people. It has everything anyone would need for longer stays.
The apartment is well connected with the rest of Florence, pretty much anything can be reached by tram / bus from San Jacopino square, which is a few minutes away by foot. Maria, who we communicated with throughout our stay, was very helpful in every aspect. Lorenzo's apartment is definitely something to consider when booking an active trip to Florence, and Tuscany in general.