We enjoyed our 4-night stay in Roberto's apartment. The person who handed us the keys and showed us everything was waiting for us in front of the house at the time we arrived, so we could check-in immediately. The location is great, it really is "Florence all around you", and we could easily reach all the things we wanted to see by walking. There's also plenty of restaurant options around.
The apartment is spacious with very nice wooden ceilings and old tile floors, which makes it a cozy and authentic place.
We would have wished for more toilet paper (1.5 rolls were provided) since we needed to go and buy some during our stay, and some of the dishes/cutlery needed a quick rinse before using them. Apart from that, we were very happy with the accomodation. Messaging with Roberto was quick and friendly.