The place fits perfectly 3 or 4 people but with practically no sunlight. The few windows present, all face walls.
The appartment is well equipped with a small kitchenette (that seems fully functional but that we did not use), wifi (beware cellular reception is bad in the appartment), a sofa bed and a double bed. However, unlike the host’s reply to other people’s review, I can confirm that the matress isn’t very comfortable, you can feel the springs and you wake up with a back-ache. Linen was clean. The bathroom was ok. However, make sure you bring your own shower gel and shampoo; we had 4 small samples of shower gel for 3 people for 3 nights and no shampoo. Some small surprises here and there like used toilet paper in the toilet seat and a used conditioner sample in the closet next to the dryer.
Apart from this, the host is very friendly and although we don’t speak a word of Italian, communication was easy. The location of the place is amazing at only walking distance from the center and all the must-see locations. It’s unfortunate the host doesn’t leave you a list of things to do, places to see or eat at, which could be a plus.
One last thing not related to the AirBnb itself but that could be of help if you’re planning to visit Florence by car, you should know that you cannot drive in the center, street parking is almost impossible and leaving your car in a private garage would cost you around 25-30€ daily.