If you're looking for a great place to stay near the Sydney CBD, I recommend Kate's place.
I went to a conference at ICC Sydney. Transport was easy. A bus stop is a short seven minute walk. Then you can be in the city for only $3.
Kate is an excellent communicator. She wants to make your stay comfortable.
Kate's place is a quiet street across from a park. I didn't get to meet all of her family. However, Kate encourages guests to come and go as they please. Great place!