We spent 4 nights at this apartment in early June. The location is perfect; it's next to the central market, a block from San Lorenzo and a short walk to the Duomo.
The place was spotless when we arrived, and the host left lots of recommendations for places to eat, things to do, etc. There was cold water for us in the fridge, and a nice espresso maker for the mornings. The host also thoughtfully left umbrellas for us to borrow in case of rain.
It was in the 80s while we were there, so it could get hot up in the loft area. We were only allowed to run the ac while we were in the apartment, but once we turned it on it cooled down.