We spent two nights in Valentinas apartment. When we arrived in Palermo Valentina was extremely friendly and open. She told us where we could park our car and then greeted us and showed us around. The location is really good, it's close to lots of restaurants but it's still pretty quiet at night. The only noise we heard were the neighbours walking around when we wanted to sleep (but only because we are people that sleep more than others, going to bed earlier and waking up later ;)).
The apartment has everything you can ask for with lots of amenities.
We were very happy with our choice and would recommend it to everyone.