Amazing! If you are getting the booking for this place then just book it. The location, the cleanliness, the room, the bathroom, the facilities... everything deserves a chef's kiss. You will have to walk a lot in Firenze so the jacuzzi is the perfect end of your day. The apartment is centre of all major touristy destination. You are actually at the centre of the city where you can are view the La Fontana del Nettuno from your window! The cherry on top - the host Luca is extremely helpful and replies all queries quickly.
One more interesting point to note is that the city does not have car access but i have seen cabs reach this place so it is good option when you have luggage.