We had a wonderful time in Florence at Luca's house.
The apartment was exactly as described except the flat screen TV besides having poor reception, was not connected to power outlet because it needed an adapter, which, fortunately, I had. Also the wifi was very, very slow (3G).
My communication with Luca was not very good either. Before checking in (Luca was kind to let me check in a bit earlier, at 11:30), I tried, as instructed by Luca, to contact him 20 minutes before 11:30. I did so by phoning him 2 times by using both voice and SMS but I had no answer from him (I used Airbnb contact).
Well, at 11:30 I was at the apartment´s door (it was raining) and then 15 min later I met Clementina. I then received the keys, she gave me some recommendations on two restaurants and I paid the city tax (however, I did not receive the corresponding receipt as promised by Clementina).
Anyway, these were some minor problems, and the most important thing is that the apartment is ideally located, in a very good neighborhood, very close to all the beautiful spots in Florence, very comfortable and very clean.
Therefore: Highly recommended!