I can recommend this apartment to guests who either stay only for a couple of days (the problems I uncounted will not bother them) or to those with a solid background in engineering. The flat is not really well taken care of. I had to:
a) defrost the fridge - which was completely iced
b) teach Martina that her flat has a autonomous heating. The heating was down and Martina tried to tell me, that the flat has a central heating and that the city of Florenz had not yet allowed people to turn on the heating (we are talking about November!). After detailed research and three days in the cold I managed to turn on the heating.
c) care about the internet connection. The internet was down when I arrived. Martina called Vodafone and told me that the line was down. It took my 10 days to convince her that the access device was damaged. So I had only a very limited internet access which Martina managed via a mobile connection (very bad connectivity).

The discription of the flat being "bright" is completely exagerated - it is rather dark (I stayed in Florence during a bright period in November).

Attention: The city of Florence charges the tax only for a maximum of 7 days. If you stay longer, don't pay more than for 7 night. Luca, who welcomed me on the first evening wanted to collect the tax for 14 nights...