We were in St Kilda to check out the neighbourhood and the apartment was very well-located for our purpose - within walking distance (max. 15-20min) to the beach, restaurants, Luna Park, St Kilda pier, Acland St etc. There's also a supermarket (Woolworth's) 2min walk away from the apartment.
Lydia's place was true to the photos - a stylish studio apartment that was really clean and very nice to stay in. Check-in was a breeze. We're a couple and there was enough space in the studio for the two of us. Also, the bed was one of the best I've slept in in an airbnb! We also liked that there was a washer and dryer in the apartment, especially since we just came from a road trip and badly needed to do some laundry.
We're really big on buying local produce and cooking for ourselves when we travel, so we particularly liked that the kitchen was very well equipped for cooking. Had no problem doing kangaroo steaks and lamb legs. One word of caution is that the smoke alarm is very sensitive (which is probably a good thing) and will go off when using the oven unless the kitchen hood is turned on and the door is opened for ventilation.
On the first night, we had some difficulty with the apartment door and Lydia came round immediately after work and resolved the issue for us. We were really impressed with her responsiveness. Lydia was also really accommodating with our need for a later check out time due to bad weather ruining our plans for that day. That really helped us! We would recommend staying here any time!