Welcome to the new forum Martin and happy new year to you too.
I don't think you should have any trepidation about your trip, the goings on in Athens never reach as far as Symi let alone Pedi! It'll be fine.
I'm interested too to hear about anyone's experience of Captain George's. They do look lovely out there at the entrance to the main part of Pedi Bay. It'll certainly be quiet - just a bit too quiet for my tastes but each to their own. I wonder if George can be persuaded to pick you up at the apartments on his way to St Nicks? It'll save you the walk to the jetty.