Was the pool in the park open in winter? I hesitated to book for this December and then cancelled the entire trip - but my most preferred place inside of the FS Florence was the pool in the park in the middle of the city when nobody else dares to go outside. It was my best surprise when we stayed four years ago in autumn. It was totally unexpected and even more relaxing than the Spa. I don't think Park Hyatt would be comparable - neither in terms of location, nor in terms of the park in the middle of the city or leave alone the historic spaces on ground floor. I still just love the FS above all the hotels I've seen so far (..-> worldwide :-)