Alison,
We returned from Tigaki 2 weeks ago. We are a couple in our early 30's. We didnt want a wild one and found Tigaki perfect. There is 1 main road with bars and restaraunts on it. Some of them are loud but some are nice and relaxing.
There is one at the end of the road which i think is attached to a hotel which was really good.
Wish we were going back