Chiara is very friendly. She gives us very detailed instruction prior to/after arriving at the guesthouse. She gives us some very nice local tips around Florence.
The room was very lovely and clean, the only problem is that it was still a little bit hot despite the air-conditioner. However, I am not blaming for the apartment, but for the heatwave during our stay (40-42 degree outside).
It is easy to travel around from the guesthouse, it takes only 5mins to walk to the Refredi station. Only one remark is that at late night, the train from the main station to Refredi station is not so frequent.