In hindsight I would book a different apartment for our 3 night stay, even if it was more expensive.
The bathroom was very small and relatively old, which I didn't mind too much. What was very disappointing, was that the shower head didn't have a way to mount it. Adding to this, the toilet seat was not fixed at all, it was very uncomfortable balancing act to sit on it for me as well as for my girlfriend. The first time I sat on it one of the two long screws holding it in place fell out, which u tried to screw in by hand. After bringing this to the attention of the host, she promised her husband would fix the toilet the next day with a special tool, about the shower head mount she informed me that she couldn't do anything in time.
On the next day her husband "fixed" the toilet seat, it wasn't more effective than me screwing it in with my hands whatsoever.
We also had about 6 mosquitoes in our room that I killed even though we didn't even open the window once (just used AC because of them). You can imagine how well we both slept.
To top it all of on our check out day we got up one hour earlier (as agreed), to make use of the luggage storage. This was another disappointment as our host was half an hour late, which made us pretty fed up and we just left with our luggage in tow.
When confronted, the host did nothing but apologize profusely and come up with excuses. I would've expected her to give us a discount at least.
The host seemed to be a nice woman, but all these things added up made for a pretty unpleasant experience in this Airbnb.
I would not recommend booking the room for two people here at all.
Florence the city itself was still a great experience.