A friend and I stayed for a couple of days in Francesco's appartment and our stay was simply perfect. The location is super central - very close to Quattro Canti, Piazza Pretoria, Chiesa del Gesù and many amazing restaurants - so a great starting point for your adventures in Palermo! The apartment itself is fully equipped with everything you need. The wifi is super fast - two people doing video calls was no problem at all and the fold-out table provided enough space for co-working.
Francesco is a great host, very responsive and he even allowed us to checkin early (as apartment was not booked the day before).
If you go to Palermo do not miss out and stay at Francesco's place! :)