We had a great 5-night stay in Paolo's apartment. He greeted us at the apartment to give the keys and provide a map and several recomendations of things to see and places to eat in non-touristy parts of the city. Very helpful! I really appreciated how accomodating he was, we had a delayed flight and had to meet him 8 hours later than planned, he made it very easy on us.
The apartment itself is lovely, just as pictured. Very clean, with helpful items in the kitchen for preparing meals. If you are American like us you might find the bathroom small, but it has everything you need and was just right for our stay. Larger than some European washrooms! The location was also very good, in a residential area but walkable to the train station and major sites, very close to Duomo.
I will mention that the apartment is right across from a pub, it did not bother us at all and it was always a safe crowd, but if you are sensitve to noise it might bother you. We slept with the windows open, didn't mind it.
I would highy recommend renting from Paolo, he is a very professional host. This apartment is a great homebase for exploring Florence.