I visited Adelaide for the first time in 2014. I stayed 4 days at a Backpackers Hostel in the City.
There are nice gardens within the city and its easy to get around by foot. I got to visit a few cafés and bars during my stay. Although they're not like Melbourne, they have character.
During my stay I met some interest fellows from Germany. Adelaide ain't called RADelaide for nothing!
A jolly good time, wouldn't mind going back again to work someday.