My stay was good and I'd recommend this apartament. But there are a few things that could be improved.
Pros: Location is truly great, close to the Metro and the buzz of Palermo at the same time. The building is above a cute ice cream shop and in the same block there are many restaurants and convenience stores. The room itself is pretty much like a hotel room: good furniture and appliances, great shower, nice little balcony.
Cons: Checkin was stressful: the doorman said the host didn't leave me the keys. He had to call her in the middle of the night to check but fortunately she was still awake and he eventually let me in. The light bulb in front of the closet was burned out, which made it very hard to find things in the room at night. The wifi was irregular and went down very often. Just one roll of toilet paper was provided: the host said that guests should buy their own after the first one was over, which I find to be something very unpleasant at this price point.