I had a great stay at Simone's and Mauro's. The apartment is cozy and quaint. When I arrived, Simone walked me through the map of Florence, recommending places and restaurants for me to check out. The walk from the apartment to the city center is fairly long; it takes about 20 minutes. But, as stated by others, the path leading to the city center is along a river, and it is really quite scenic so I had no problem walking. If walking is not your thing, the bus stop is 2-minute away from the apartment, and it takes 5 minutes to get to city center. Lastly, shout out to Mauro who was just super. Very knowledgable and friendly, he chatted with me for a while about Italy's history in which I am interested. Would definitely come back!