Excellent, excellent place to stay.
My mother and I stopped in Florence for 5 days during our three week tour of Italy. Giacomo was super nice at check in and we never had any problems with the space. The home is so cute and the cave-like atmosphere is unique and endearing.
My mother did mention that the large bed was not as comfortable- it was not awful, but it did not have the best support. If you are elderly and/or have back problems like my mom that might be worth noting, but she still slept alright for our short stay. I had zero complaints about the smaller bed; I was very comfortable.
The adorable green kitchen was a blessing and we cooked some wonderful meals there! It comes stocked with all the dishes and pans you could need and also has some things like olive oil and spices.
Also worth noting that the thick walls keep the house at a comfortable temperature all the time - so nice!
All in all, it was wonderful. I will absolutely want to stay there again the next time I am in Florence.