I had a great time in Surry Hills.
The localization is amazing! The building is right in front of the subway station and in the city center. You can easily go to popular touristic attractions, even by walking. The host sent me the check-in details early enough which made it easy for me to get in.
Thus, the room and kitchen could be cleaner, and isolation is not amazing: you can wake up in the morning by the other residents noises or cleaning staff. Also, the wifi was not working at all and that was a huge issue. I recommend the place for a short stay