Kirsty's apartment is lovely and well-decorated. The wifi and air-conditioning both worked very well, and overall everything was really clean. We had a very comfortable stay, and Kirsty was so nice and communicative!
The location is great as well, Collingwood is an awesome area with some cool shops, breweries and restaurants nearby. Kirsty's place is not far from the train that goes right to the city center, so it's a convenient location.
All in all we had a great stay and I would definitely recommend this as a place to stay if you are visiting Melbourne!