I've tried 4 drinks from here since their grand opening. All were customized w/ less ice.
1&2) Milk Foam Oolong/ Wintermelon Tea at 50% sugar- "milk foam" is basically their take on "crema", which is a thick layer of frothy cream on top of the tea. It has a rich & almost buttery taste w/ a hint of sea salt. I liked how it was sweet & salty, and that the tea offsets the heaviness of the cream. But the tea itself is just something that you can brew at home.
3) Peach Green Tea w/ qq jelly at 50% sugar- this is by far the worst drink out of the four. It might be an off-case, but I was taken aback by the sweetness; it was to the point of being syrupy, and even the slight tartness couldn't cut it. The taste of tea wasn't particularly strong either. You'll be better off buying a bottle at the mart (e.g. Tao Ti ??) and adding your own jelly/ tapioca to it.
4) Brown Sugar Oolong Milk Tea w/ coffee jelly at 30% sugar- I've come to realize that their milk teas are sweeter than other bbt places. But even at 30% sugar, it was still way too sweet; it might be b/c of the coffee jelly which was soaked in syrup. On the up-side though, I can taste the oolong, and it was an interesting pairing w/ the coffee.
Gong Cha is alright; but w/ five others within 10mins walk, I'm not in a rush to come back.