The location of the apartment is really wonderful. You can see Piazza della Signoria when you open the window. What's really cool is that you can see the square's clock when you lay on your bed.
Right below the building there is a nice coffee shop and you should definitely try the so-called "cremino", which is the Florencian version of the croissant.
You need to do self check in which was easy for us as we are young and used to do many operations online. There is an elevator but you need to climb some stairs before. It's easy.
The apartment was clean even though I would have preferred some more towels but I guess this is something personal.
Overall, we enjoyed our stay in the apartment and we would return there. I certainly recommend this apartment for singles or couples who wish to spend a few days in the heart of Florence.