I had a great stay at Enrique's apartment. The location is ideal, literally 30 seconds walk to the Palazzo Vecchio. The check-in was very smooth, Enrique showed me everything in the apartment and gave some valuable recommendations about what to visit, where to rent a bike, etc.
The room is quite nice, although with very low ceilings. The bathroom and the toilet are quite small, too. All that is more than compensated by a big living room (shared with another flatmate) and a completely incredible terrace with a view on the Duomo and Palazzo Vecchio. Totally amazing.
Enrique's flatmate, Andrea, turned out to be a very nice host, too. He was so kind as to invite me to a dinner with his friends, which was really special.
So overall, an awesome stay, highly recommend.