Mario is a stupendous and kind host. He went out of his way to pick us up at the Firenze station at 1:30 in the morning. Even though we could not communicate perfectly, he gave us a phone to use while we were in the city, so that we could text him if we had any problems. On one of the days, the Internet did not function correctly and as soon as we told him (which was around 10:30 pm), he arrived at our door in five minutes to fix the issue. Mario also gave us great advice about where to go (and where not to go), and equipped us with lots of maps and guides, which were useful to carry around the city. The train station and bus stop are indeed very close by, so transportation to the city is not difficult at all. He also bought us really delicious focaccia on our first day! At all times, he was available to our needs. He even offered to take us by car to a nearby city (great suggestions like San Gimignano and Siena), but we had to decline because we were enchanted by the charm of Firenze. The sole issue we had with the apartment was that if you open the windows, mosquitoes will definitely come in to bite you at night. For that, Mario has provided a bug repellent but I would just suggest not opening the windows much.