Yes, it's really good. I'd say that the coffee itself is less bitter than Starbucks, and the syrup is a little sweeter. No added sugar, but just a tad sweet. At Starbucks I always ask for nonfat milk too, and I never remember to at the other place, but I don't think that has anything to do with it!
We recently also discovered Trader Joe's coffee; the regular dark roast has a nice flavor and a can of whole beans is only $4.99. It tastes more similar to Dunkin than Starbucks...not bitter.