Stayed there for three weeks in July. Outstanding location. View of the Arno day and night is really something. It was hot and we appreciated the great air conditioning. The only note I would add is that for those not accustomed to stairs there are 49 steps which some days we cursed, especially those when we had lots to carry. However I would gladly trade that off for the location. Also we had two apartment cleanings during our stay which was unexpected. They cleaned the apt and provided clean towels. We also like the multiple towels. Most places only provide one flimsy towel for the guest. We are also thankful for the handyman, Alberto I believe, who helped get out luggage up and down the stairs.
Highly recommend this place.