Had a great stay at Kyle's place. The apartment was small and cosy, perfect for just me. It stayed warm, even in some unseasonably cold weather I didn't need to use the heater. Bed was comfy, kitchen basically but adequately stocked and it was clean and well kept.
The location was great for me, walking distance from a course I was attending. I get the impression it can be a bit of a dodgy area, but I always felt safe in the apartment. However, if you are a light sleeper, this is probably not the place for you. The walls are thin and it can be a quite loud, particularly on the weekends.
Kyle was a fantastic host, very responsive with clear instructions for check in and helped with some questions I had about transport in the area. I had to change my plans at the last minute and cut my stay a bit short, Kyle was fantastic! Responded immediately and was very flexible and accomodating with changes.
Over all, I would recommend staying here if you need to be in St Kilda.