I'm one of the lucky people where any coffee is coffee for me. McDonald's, Starbucks, instant coffee, specialty coffee, cat pooped coffee? Yup, it tastes like coffee, I'm good to go.
But to me, Starbucks still tastes terrible (burned), and Dunkin Donuts is nasty.
In recent years I've ordered my roasted coffee from coffeebeanery.com, and I've been pretty happy. I'm pretty sure all of the varieties I get are Arabica.