Great place to stay in Palermo!
We stayed in February, so no need of aircon (the heating worked fine). The location could not be better, very central, just off pedestrianised main street, and up a narrow side street - very very quiet for such a central location. Handy for everything. It is four flights of steps up, on two levels and has a spacious terrace, not overlooked, with nice views of the surrounding churches and hills.
The kitchen was very well equipped - but why cook in Palermo with such good food!
And lots of wine glasses - a nice place to have a few apperitivos with the kids before heading out for the evening, as would the terrace be in warmer months.
Unlike a lot of 'industrial' Air BnBs, the house was interestingly and tastefully decorate with artworks which gave it a warm and homely feeling. It's a lot bigger than it looks!
Floriana spoke good English, very friendly and gave us a very useful list of bars and restaurants which we used a lot.
We will definitely be back!