Meh. Barely any scent and hardly any taste to distinguish it as "butter toffee". Just a hint of nutty smokiness. I'd think it was regular plain coffee if you didn't tell me it was "flavored" and it's not even really tasty as "regular" coffee.
This is my second box of Butter Toffee. As most of the other flavored coffees there is just a hint of toffee, could be stronger. Nice alone or with a donut.