Nicola's apartment looks better than it does in the pictures. Very nice and convenient with plenty of space for 4. The additional small bathroom is great when you have a couple of people. The location is great, walking distance to all the important sights.
Nicola was very thoughtful - welcomed us to the flat, provided us with good tips as to where to eat and how to move around. He helped us book a cab for the early morning flight back and provided numbers to reach him in an emergency - which, luckily, we did not need.
We stayed for 4 nights, so Nicola took us out on a tour (he's a certified guide). Really enjoyed it - he provides some local information that is not available on guide books. I would recommend that you hire him to guide you in Florence or take you out on a drive - a day trip.
Enjoyed the stay. Highly recommended. Will definitely come back here.