Federico has an amazing space. It was really cozy for my friends and I. We were there in some of the hottest weather I've experienced in a long time, with temperatures above 38C and this place was a nice refuge from that.
But in addition to that, it's located in such a great location. Most places we went were 20 minutes away or less on foot, and being so close to the Arno gave access to beautiful views at any time of day. Out of all the places I stayed in Italy, this was the best.