Our family of 4 spent 4 nights here.
The location is excellent because so many things are walking distance including The Rocks, Opera House, Harbour Bridge and CBD. This does mean you can hear people walking past, which can feel loud at night, but as long as you're aware that's not a big deal.
The host arranged parking permits that we paid for in cash. This was $20 per day. We appreciated being able to get a permit and we were able to park at the front door each day.
The house is very clean. We were able to cook breakfast with the facilities available.
Unfortunately the cooler in the second bedroom did not work. The cooler in the first bedroom worked but made a rumble (similar to a phone vibrating) continually (about every 2 minutes) which meant we didn't sleep but overall we had a great stay.