Luca's place is absolutely wonderful. Very nicely done with a private bathroom. The garden is really nice and guests have direct access to the garden through the room.
The house is about 4kms from the city centre, however the bus stop is just 300mts from the house. Buses 6, 6A and 6B will take you to the city centre in 20 mins.
There are some nice restaurants and super markets within walking distance. Do go ahead and book if you are looking for a comfortable and relaxing stay at Florence.