Valentina is a great host. Very responsive, flexible and helpful. She can help you also to organize the transfer from and to the airport. The flat is pretty nice, generous, on two levels- which is great if one of you is an early bird and the other not ;-).
Though Palermo is not really cold in December (about 17 degrees) I appreciated the good heating in the flat. We didn't need it often, but good to have it. The flat is situated on the 2nd foor, the stairway of the house is a bit narrow and my husband had to watch his head.
I'd love to come back!