First the warnings: it is a 142 step climb to the apartment. It is an ancient palace building so you will find it pretty old looking in parts and with non-modern bathrooms. It sits above the main market so is pretty noisy from about 5:30 or 6 am.
That aside, it is a PALACE. It looks fantastic and is great to stay in. There is a terrace set up top in between the roof tiles with surely the best views in Palermo. It is right in the old town. The hosts are great - informative, helpful, friendly and available. Bed 1 has an ensuite. Beds 2 and 3 share an ensuite. You should stay here...