I think that Hangdog might not suit everyone. I recognise that it is part of the scene but having a few other "chilled" out dudes decide that lighting a fire a few metres from our tent and then proceeding to swear and explode deoderant cans into the wee hours two nights in a row sure made our stay there unenjoyable. The climbing was OK, but I found the slopey limestone got a bit same same. Nice river though.
If I had my time in the South Island again I would:
1) climb more around Dunedin (we only bouldered on Long Beach [good fun] and the routes looked pretty fun);
2) take a bouldering pad (we were travelling light) and spend more time at the less travelled areas around Castle Hill (Flock Hill etc) with less polished footers; and
3) bunker in at Homer's Hut for a week+ in the Darrens and hope to do something big and adventurous.