We stayed for 2 nights at Giuseppe's little flat, and it was a great experience. The apartment is very well laid out, with everything you could ask for, even a pizza oven!!
It is very well located, and private parking is a big bonus in Florence.
Access to the city centre is very easy by tram or walking if you wish. There is a supermarket nearby that is open late.
Giuseppe was a very good host, and his recommendation for a local pizzeria was great, there was a queue of locals to get in and the pizza was fantastic. They even served Gluten Free pizza that was excellent.
Would definitely stay there again and recommend it to others.