This is a great find. Having been to Melbourne a few times, this location has by far been my favorite. Steps away from the buzz of Chapel Street and Prahran Market, it is the ideal spot. The flat itself has everything you could want or need and the amazing rooftop is a bonus. The studio apartment is spacious and has a nice bathroom.
One thing to note (and this is no reflection on the hosts, or property) is that as you are above a bar, it's pretty loud. There were a couple of 3am fights which were pretty unpleasant. If you're a heavy sleeper then I'm sure you'll be fine!