We had a great stay and met some lovely people while staying here. Very close to the bus that goes into town (right around the corner) or a 30 minute walk, there's an awesome Gelato place about 10 minutes away that's just fantastic, better than anything we had in town. The room is super clean, and Maurizio is a great host that's incredibly attentive. He offered us ice cold water in a thermos one night when all we had were our warm bottles, gave us a map of the area, recommended a place to eat near him and his breakfast was plentiful with lots of variety.
He loves to talk about the history of Florence and despite the language barrier, we learned a lot from him.
A couple of things that were by no means a deal breaker---it was HOT in the room, woke up in the middle of the night because of it. He gave us a second fan when we asked with no hesitation, but still it was hot. Opening the window = mosquitos, but it didn't let in much of a breeze anyway. If you're looking for a cool place to nap during midday in August, this is probably not the best choice of a bnb. Would probably be fine when its not above 35 degrees outside, but otherwise could seriously use an AC unit.
There is a co-op convenience store nearby, but we only saw it open in the morning. As it is a residential area, if you needed a quick thing at the store or cold water anytime in the afternoon/evening, it was hard to find without getting on a bus. Probably because it is August. We stumbled across the gelato place near the main roundabout 5 minute walk from his house though and it's open till midnight and serves gelato, sandwiches, etc.
Overall it was a great stay minus the heat in the room, and with some planning (buying stuff ahead of time including loading up on bus tickets due to everything being closed early) it should be fine and well worth the money.