miuccia, I grew up in NYC, so I was in fact the first person in my immediate family to own a car. Neither of my parents ever did. In ten trips to Italy, I have never only had a rental car once, for Tuscany.
This is not a problem in November, but the failure of busses from Amalfi to Sorrento to stop in Positano because they are full is a rather serious problem for ticket-buying tourists. Numerous examples of failure to appear Circumvesuviana runs have been posted on this newsboard. Every morning we walked through Sorrento (last week in May), there were more people waiting in line for the bus to Positano/Amalfi than would fit on the next (half-hourly!) bus.
I did not say that Naples or any place else was a hell-hole, because I don't believe that. I have never advised anyone not to visit the Amalfi Coast, or any other part of Campania. I frequently remind people not to miss the Farnese Marbles, and that the train and busses may stop running earlier than they would in Rome. My own area suffers from insufficient taxes to maintain demanded services, as well!
It is a fact that the posted ferry schedules are not user-friendly and are frequently out of date. I mean, the Naples Flat Rate Taxi Sheet is about 15 or more years old. No wonder the drivers try to collect phantom luggage charges!