Went here because the whole world was trying this place.
As I was having dinner, I got the purple Okinawa which is a purple sweet potato flavoured milkshake.
It tasted really nice because it was thick and creamy with a natrual sweet potato taste that was not too sweet and the taste lingered in your mouth.
The milk they used was really good because it didn't leave any unpleasant aftertaste like cheap milk powder and weird milk that they use in Hong Kong!
I hope to try the softserve when I am next in TST!