Went there a few weeks ago in the Hawker 850, no problem with the runway etc.
Handling easy to deal with but a bit self service, Book your own hotels or you will not have one. I would stay here:
Grand Hotel Salerno (Salerno, Italy) - Hotel Reviews - TripAdvisor
The hotel by the railway station is, rather like Naples a **** hole.
Seriously, the best thing to come out of Naples is a Northbound SID.
Jeff