Tomaso and Lorenzo are both outstanding hosts! We got lost in our arrival by car in Florence due to construction work and streets closed for pedestrians on the ZLT where the apartment is located in, and they went out of their way to find us and guide us not only to the place, but also to find a garage nearby that could accommodate us (which was rare). They also helped us with our luggage up the stairs, and provided a lot of great tips!
The apartment itself is lovely, VERY spacious and comfortable. Great, comfy bed. Great shower. Very clean too - though there was a little bit of a smell in the air, but got a lot better after we opened the windows for a bit.
Walking distance to everything in Florence, you won't need a car once you arrive.
Tips to people arriving by car: the apartment is located within the ZLT (limited traffic area), and it's ok to go in as long as you park your car in a garage within the ZLT, just make sure the garage adds a ZLT pass to your car so you won't get fined. Pre-arranging a spot with a garage may be a good idea since they get full. Also, drive a small car - the streets are TIGHT!