My stay with Ling was a mixed experience but leaning on positive due to Lings very attentive communication. Communication with her was great and her cat Sici is adorable and very friendly. She goes everywhere in the apartment just something to be aware of, but having cats myself this wasn't a problem for me.
The check in process was a bit chaotic which Ling assured me was due to special circumstances. She wasn't there during my stay and I had to take care of the cat which wasn't a problem for me but this was not communicated beforehand.
The apartment was unfortunately very dirty on arrival. The main living area had been cleaned but the kitchen and bathroom were quite dirty. After letting Ling know she organized a cleaning service for the next day which improved the situation, at least in the bathroom.
The apartment is also not very quiet. The main street is very near and the windows are very thin (which is standard for Palermo I suppose), there is also a lot of noise from the building, especially something which I assumed is a water pump.
Nevertheless I had a nice couple of days. The apartment is very central and almost all the sights are within walking distance. Ling had a lot of great tips of what to visit and checked in daily if I needed anything. I'd love to give the apartment a higher rating but I think one should be aware of the whole picture.