Just returned.
Anne please take my advice--stay in Minori. It is more 'authentic' than most towns there, rivalled in that sense only by maybe Cetara, Atrani and Scala. We stayed in an affordable apartment (with a lift) in a prime Minori location called 'La Zinefra'. By October, its cost will have returned to a very attractive rate. Property manager Mario Arzano (+39) 3924740407, is a wonderful person who will take care of every conceivable logistical concern. Per favore, tell him that 'Gregorio di Toronto' sent you. Trust me, there is added value in that connection.
Just some thoughts to make your stay 'ottimo':
Consider the isle Ischia in your plans. Its 'Ischia Ponte' neighbourhood is similarly 'genuine' and faaaaaaar less costly than Capri. To contradict that last sentiment, we splurged there in an apartment that was fantastic. Note that both aforementioned rentals have world-class views!
Don't miss the tiny isle of Procida---exactly as advertised and a highlight. And Herculaneum will have fewer crowds, more shade and well-preserved relics. *see my recent post ('He came out through the bathroom window' on the Fodors forum where I go by 'zebec' for an amusing true tale of our most recent visit there).
As stated above, we just got back, and it was to a severe shock---my mom had died a week earlier and they couldn't reach us coz our rental contacts were on a relative's fon whose charger had also suddenly died---God's sense of humour.
Anne, I'm happy to further advise. Please don't hesitate.
I am done. the life cycle