I work nearby and frequently come by for a cool and refreshing drink. Their green milk tea is one of my go to drinks. I pair it with sago, less ice, and regular sugar. Other favourites would be the matcha milk tea, black tea latte both hot and cold, and the 3 guys is really good.
However, the 3 guys is a bit pricy and I usually get it with my free drink using their vicinity points card. Definitely get one of these points cards as it helps you redeem cool stuff later on.