The place is about a 15-20 minute walk from the Firenze S.M. Novella train station. I recommend taking a taxi if you're towing luggage because of all the small cobblestone streets. Lorenzo (one of the two brothers) warmly welcomed us on our first day, gave us a local map with some tips, answered our questions, and collected the tax that we had to pay. There are 2 small elevators in the building and the apartment was clean and quiet. The building is also in a great location (lots of nearby restaurants and about a 5-10 minute walk from the Duomo). There's also a taxi stand about one block away. One minor hiccup is that we ran out of hot water for showering one particularly cold night. According to Lorenzo there's a 100 liter heater. The next nights we waited ~15 minutes between showers and had no problem.