What can you tell me about Adelaide, Australia?

My nephew and his wife are both MDs and have been there a couple of weeks now. They are on a two-year exchange program--he's been an urgent care doctor and she has been in family practice. We are talking about visiting them in a year. They have been in a training program since they arrived.

Today on Facebook she posted a glass bowl of beautiful perfect cherries. (Thanks to the drought our cherry crops here weren't abundant.)

So I've Googled and read about the area, but I wonder if anyone can tell me what it is like to visit and live there? I'll see my sister on T-Day and will find out more about what they are doing, but for now I am curious as to what it would be like for a 30-something professional couple.