Hi Holly. Good question. I suppose it depends on a few things – where you’re staying, what you enjoy doing, what kind of food you’re interested in… the pub and restaurant scene in Balmain is very good with a wide range of options. For something a bit more inner-city, Surry Hills and Darlinghurst are good places to find great food and fun bars. All three of these places are worth exploring too. During the week, there are lots of cool places to eat and drink in the city, though over the weekend, they’re more often closed.
The Vivid Festival, an amazing city-wide interactive art installation of lights, music and displays, will be on until mid-June (finishes on June 15th in fact), so there’ll be plenty on all over Sydney until then. Be aware though that things like hotel prices will probably go up and availability might be a problem. Also restaurants are significantly fuller during Vivid.
I hope this helps – if you want more specific answers re: restaurants and bars, let me know what you’re into and where you’ll be in Sydney. Might be able to give you more detail.
Cheers – Jim