We went on a road trip to Sicily in May 2014 and Salvatore's apartment was the last place we stayed in. We were supposed to be there for two nights and one night in Palermo before we leave for home. However, the place was so amazing, that we decided to skip Palermo (which is really noisy and dirty and has horrible traffic) and stayed in Castelluzo.
The apartment was really nice and the location is great. It is close to San Vito lo Capo and is part of an olive farm. There is everything you need and it is just a short drive from the beach.
Salvatore and his mother were really helpful and provided us with everything we needed. We could even use their garden for fresh tomatoes, etc. Salvatore is very responsive and we fully recommend his place.
Last but not least, if you decide to choose Salvatore's place, visit San Vito lo Capo and go on a boat trip with Hippocampus http://www.hippocampus-sanvito.it/?show=slide . The boat is onwned by and English lady (Susan) and her husband Mauro. You can spend an amazing morning with a 4 hour boat trip around the coast, enjoying local pastries, wine and cheese.