Staying at Leonard's place was amazing, the apartment is very nice, cosy, clean and well styled. It's very close to the main train station, super easy to walk everywhere and some of the major historical sightseeing places are just around the corner. Leonardo himself was very nice and helpful, checking in was quick and easy, also offered to keep my luggage with him on my last day after the check out. I definitely recommend staying at his place and will myself if I ever visit Palermo again.