Hi
We went down the Great Ocean Road in November and stayed in Apollo Bay (4 adults). We really enjoyed it there - lots of options for accommodation. Just be aware that most restaurants stop serving around 8pm so ensure you either book or find somewhere relatively early. Here is a link to where we stayed - self serviced apt which we found great value for money http://www.greatoceanroadtrip.com/cgi-bin/rez60load.pl?0052/ab0052.html The owner was really friendly and recommended places for us to go. It was only a 5 minute walk into the promenade/shops/beach of Apollo Bay so no one had to drive to restuarants in the evenings.
Hope that's of some help!