It was a nice host with supportive and friendly owners. The flat is clean, comfortable and situated near historical center and some restourants. We had nice time there.
The only thing you should take in mind - Palermo is noisy, and you can clearly hear that something is happenning behind the window the whole day long. It didn't bother us as we stayed there for 5 days, but may be can be important for you.
Thank you Matteo a lot!