McDonald's New Caramel Iced Coffee

Well, tonight I tried McDonald's new caramel iced coffee. I am a fan of their hazelnut iced coffee, so why not? Much to my dismay, I find the caramel flavoring in this coffee to be overpowering.. I'll stick to the hazelnut.
Overall, I find the consistency of the quality of McDonald's iced coffee to be non-existent. One time you buy it, the coffee is sickeningly sweet. The next time, it's almost bitter.
I think McDonald's needs to take another look at this. After all, their trademark is consistency. A cheeseburger here in the States tastes the same as a cheeseburger you get in London.