We spent three nights at the Adelaide Stamford Plaza with our two daughters (ages 8 and 11). We arrived without a booking and were given a fantastic rate that included full buffet breakfast. Because we were travelling without a vehicle, our free parking was converted into food/beverage credits - another bonus.
We were very comfortable in a large room with 2 dbl beds and the kids loved the rooftop swimming pool, especially swimming at night. The central location close to the restaurants in Rundle Street and Gouger Street meant that we had plenty of places to eat within close walking distance. The buffet breakfast was great - so much variety and excellent food and service.
Instead of a vehicle we were all riding pushbikes and the concierge's desk provided locked storage for all four bikes and our small bike trailer. Staff were very helpful in storing and retrieving them whenever we required.