We stayed here for 4 weeks (2 adults and 3 children) and overall we really enjoyed our stay. The apartment was as described, really open and spacious for a two bedroom. We used the sofa bed in the lounge and everyone was really comfortable. Two big positives were the location and the facilities. Walking distance to Victoria Market, Flagstaff Gardens and within the free tram zone the rest of the CBD is easily accessible. It's also very easy to catch trams and trains out of the city, with Southern Cross station just down the road. The heated pool and gym were great and well maintained.
It can be quite noisy with building works across the road during the day and traffic and trams, but this is the nature of CBD living I guess. Just something to be aware of as our kids took a while to get used to it.