Great location, charming but tiny place! You have what you need in terms of a nice shower and cozy spot to sleep.
This spot would work for you as a single traveler if you aren’t planning on spending much time in the unit, as it is quite small. Wifi was unreliable for me in this spot, but I had an Australian SIM with data which helped.
As someone exploring Sydney for the first time, Surry Hills was a lovely neighbourhood - location is definitely a plus for this listing!