This was the second time I stayed at Tatyana's place. I met another person, a professional from ACT, who also stayed there before. You could stop reading here: if people are coming back, it means they like the place.
I think the place is a great value for money. I cycled to downtown, but g-gle maps suggest it's easy to get there by public transport (under 30 min) even late at night. There is a short walk to a shore; 10 min to a street with several nice restaurants; and 20 min to Birkenhead Point outlets. I only used Aldi and Coles Local there, but many travel guides say that Birkenhead Point is an important shopping destination in Sydney.
The place itself is a big house; you will have access to a covered patio (which is a luxury in Sydney). There is also a common room, but the weather was nice and people tended to eat food on a patio when I stayed there. The owners live upstairs. I did not need anything, but it feels that if you do, then they would handle it very efficiently.
There is a dog. She is so friendly that, unless you cannot stand dogs, it would be a plus for you.
The house is on a dead-end street, so it is very quiet around there. There is a bit of commotion around 7:30am which may wake you up if you are a light sleeper (as I am); but if you are a light sleeper, you would get used to waking up early anyway.
If you are extremely tall, you might find the place less suitable for you. The ceilings are high, but there is one relatively low tie beam that may annoy you. At 1.75, I would clear it with plenty of room to spare but I feel it might not be the case for someone who is close to 2m.
I knew another review mentioned a smell. When I arrived, I thought there may be some, similar to what you would often find in basement apartments. Since I am allergic to these kinds of things, I initially ran a HEPA filter. But later I would forget to switch it on with no problems. I wasn't even sure if I could smell it. The smell might depend on the weather.