We stayed in this apartment for 8 weeks. As it says on the tin, it is a small place. However, it is pretty well set up and comfortable for two people. The kitchen is well equipped with most things that you might need to cook and eat. The shower is great with plenty of hot water. The lounge has a good tv and although the couch is a little soft, this is easily remedied with cushions. The bedroom is tight, the bed is ok. Being on the upper floor, the apartment also gets good sun and so is also quite warm.
The location is the best part. It's quiet, except for the chattering birds! It's in a great area full of classic terrace houses. It's only 5 or 10 minutes walk to supermarkets, cafes and other shops and services. It's the same for walking to Elizabeth Bay and Rushcutters Bay, with Double Bay and Darling Point just a bit further away. You can walk to Hyde Park in 20 minutes.
Kings Cross metro station is a 7 minute walk and buses are also available close by. Ferries to Circular Quay leave from Darling Point and Double Bay.
We never met the hosts, but any problems were fixed very promptly.
For us, this was a great place to stay in Sydney.