We unfortunately did not have a good experience here. If you're reading this, you're better off booking another slightly more expensive place in the area if you want to avoid any problems.
When we arrived, the room was much smaller than expected. From the photos, the room looks new and quite spacious, but in reality it is run-down and very small, we couldn't even open our door fully.
In one of the rooms (the one which we had) had no wifi at all. There should be a wifi extender in the house. If you read the reviews below, there will be many others complaining about the same issue. This is a huge let down as we had to be in the living room to have internet.
The locks are very old. Several times we couldn't open the two main doors and this was incredibly frustrating.
The whole place does not feel like a home at all. I understand that this is in the old town and that eveything is older, but nothing was done to make the place more welcoming. You have to go through a series of tight alleyways inside the building to reach the accommodation. It's all a bit weird.
One of the guests was also smoking non-stop in the kitchen, and quickly after the smell of smoke was within the whole apartment. Next morning, several cigarette buds were found on the kitchen floor.
To top it all of, we were only given a VERY small ventilator. It is currently averaging 35C in Florence, so sleeping here was nearly impossible. When we arrived, our ventilator was not working at all, and because of that, we couldn't sleep and lost a big part of our next day in Florence, something impossible to recover. We were given a new one the next day, but even though this one worked, it was the same size and didn't do much.
Find another place to stay, don't be tempted by the cheap price. Florence is one of the most beautiful cities on the planet, so spending a few more extra euros will completely change your trip.