My stay in Valentina's apartment was nothing short of perfect. The property is exactly like in the pictures - very beautiful and exquisitely finished - and Valentina herself was an attentive host.
Palermo is a beautiful city with lots of wonderful things to see, and the apartment is excellently located, close to most of the best sites: right next to the stunning palatine chapel and very close to the beautifully evocative San Giovanni agli Eremiti and the buzzing Ballarò market.
Next time I'm in Palermo I'll definitely try to stay here again, and would whole-heartedly recommend the apartment to anyone.
The only drawback were the two flights of steps leading to the apartment: high uneven steps made it a difficult hike up and down for my aged mother, but this was only a tiny fly in the ointment in an otherwise all around pleasurable experience.