My husband and I visited Sydney for the first time October 2017, it was a dream come true and one place I really wanted to visit was the Grounds of Alexandria. We met with a friend living there for lunch and it was amazing. I say, if you ever want to have lunch in a cool place in Sydney, this is the place :) Take a look at their homepage and do a little dreaming.
We had lunch at the Potting Shed, it is such a cool name and the food and Coffee was really to our taste buds. By the way, Coffee in Australia was really good.
If we ever will be back to Sydney, I would love to visit this place again.