Yuan Cha prides itself on brewing real tea (instead of using syrup) for its drinks. I got the tie guan yin brewed with osmantus at 50% sugar level (was informed that the drink would be bitter for any sugar level below 50%). The drink was light, fragrant and thirst-quenching. Rainbow QQ is a mixed topping of chewy sweet yam and normal yam, which I really liked more than the typical black tapioca pearls!