I stayed at Mathias's for 2 weeks. Mathias was always super responsive with any questions or issues I had. His colleague Martin was also very responsive and great as well. I absolutely loved the building - modern, friendly security guards at the reception, two pools, great rooftop, and a sauna. While, overall, I think the building amenities made up the value, I do have to say that the apartment was a lot smaller than what I expected (I've stayed at three other studio airbnbs in Palermo H. and all were bigger than this one). The kitchen, especially, is very small to cook anything really. It basically felt like a small room at a nice hotel. I think it's a good place for a short-term stay, but not sure if it's suitable for anything medium to long. My overall experience was fair.