I can only recommend this flat. I normally always try to also point out critical sides, just to give a full image, but I cannot really think of anything. The quarter is one of the coolest in Firenze with a more urban italian vibe with lots of cafes, bars and shops - while not so touristy and therefore more relaxing, it is an easy walk to most tourist spots.
The flat is equipped with everything needed, there was even salt, oil and coffee already available and water waiting in the fridge. TV (with netflix) and air conditioning, everything works. A little balcony gives you the opportunity to have a glass of wine outside. Communication was always fast and easy going, check-in and check-out without problems, we could even leave the luggage a bit longer in the flat to have another stroll in the city before we leave. It is really quiet, so we could also rest well.
Last but not least the price is also good. I would book it again when we come back to Firenze.