I LOVE the Mango RTD as well as the Strawberry-Banana. I have one or the other every morning. I have the Mango when I am craving a smoothy, and the Strawberry-Banana when I am, well, craving strawberries.
I attempted to enjoy the chocolate and vanilla RTD's, but did not like them. I initially hated the chocolate drink packet, but when I mixed them with cold coffee (leftovers I put in fridge) or heated them in the microwave and added a tad of vanilla, I loved them, and they are now one of my staples!