I love bubble tea and this place does not disappoint. Taro milk tea, watermelon tea and peach smoothie are delicious.

Gong Cha has the best and tas(tea)est bubble tea you can find in Australia.
They have ruined all other tea brands for me (in a good way) :P The flavours and the tea are spot on. They do tend to make the milk tea a bit sweeter than other places, which I personally find perfect fine, but of course, sugar and ice levels are customisable to your own preferences anyways.
Even their hot teas were quite good. Definitely a must try if you enjoy tea of any kind.

Approximate cost: $5.5

Always leaving this place with a smile because they provide me with the best milk tea in Sydney. The quality of their drinks are really great and the service is also quite well.

Great tea, no service.
Great quality (takeaway) tea but the staff were either daydreaming or they didn't seem to understand simple English. I guess this is more of a grab and go tea shop. The price is not expensive but not cheap just like other Asian bubble tea shops around. Try the white pearls, they are surprisingly tasty.
Will still return but not for the service.

Approximate cost: $5.50